Search a number
-
+
157558914809856 = 2173472418389
BaseRepresentation
bin100011110100110010001011…
…001001100000000000000000
3202122212111002200020220210000
4203310302023021200000000
5131122421124142403411
61315033322145440000
745121153534416300
oct4364621311400000
9678774080226700
10157558914809856
11462263a69486aa
1215807b81940000
1369bb984ca5731
142ac9c6c163600
151333707aa6956
hex8f4c8b260000

157558914809856 has 2160 divisors, whose sum is σ = 574076246047920. Its totient is φ = 42902193438720.

The previous prime is 157558914809717. The next prime is 157558914809911. The reversal of 157558914809856 is 658908419855751.

157558914809856 is a `hidden beast` number, since 1 + 5 + 7 + 5 + 5 + 89 + 1 + 480 + 9 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1770324885460 + ... + 1770324885548.

It is an arithmetic number, because the mean of its divisors is an integer number (265776039837).

Almost surely, 2157558914809856 is an apocalyptic number.

157558914809856 is a gapful number since it is divisible by the number (16) 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 157558914809856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287038123023960).

157558914809856 is an abundant number, since it is smaller than the sum of its proper divisors (416517331238064).

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

157558914809856 is an frugal number, since it uses more digits than its factorization.

157558914809856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 4354560000, while the sum is 81.

The spelling of 157558914809856 in words is "one hundred fifty-seven trillion, five hundred fifty-eight billion, nine hundred fourteen million, eight hundred nine thousand, eight hundred fifty-six".