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155008663028660 = 225741131877235057
BaseRepresentation
bin100011001111101011000100…
…010011000000001110110100
3202022211200110020121101002002
4203033223010103000032310
5130304130220213404120
61305401555143234432
744436002113065050
oct4317530423001664
9668750406541062
10155008663028660
1145432894237441
1215475873748a18
13686533c63952c
142a3c66053cc60
1512dc1e7469375
hex8cfac44c03b4

155008663028660 has 192 divisors, whose sum is σ = 384443083132416. Its totient is φ = 51394900377600.

The previous prime is 155008663028641. The next prime is 155008663028683. The reversal of 155008663028660 is 66820366800551.

It is a super-2 number, since 2×1550086630286602 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155008663028596 and 155008663028605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 659333852 + ... + 659568908.

It is an arithmetic number, because the mean of its divisors is an integer number (2002307724648).

Almost surely, 2155008663028660 is an apocalyptic number.

155008663028660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155008663028660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192221541566208).

155008663028660 is an abundant number, since it is smaller than the sum of its proper divisors (229434420103756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155008663028660 is a wasteful number, since it uses less digits than its factorization.

155008663028660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236122 (or 236120 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 155008663028660 in words is "one hundred fifty-five trillion, eight billion, six hundred sixty-three million, twenty-eight thousand, six hundred sixty".