155614099968 has 200 divisors, whose sum is σ = 465027479268. Its totient is φ = 51808813056.

The previous prime is 155614099967. The next prime is 155614099999. The reversal of 155614099968 is 869990416551.

155614099968 is a `hidden beast` number, since 1 + 5 + 5 + 614 + 0 + 9 + 9 + 9 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 146388881664 + 9225218304 = 382608^2 + 96048^2 .

It is not an unprimeable number, because it can be changed into a prime (155614099967) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45327180 + ... + 45330612.

Almost surely, 2^155614099968 is an apocalyptic number.

155614099968 is a gapful number since it is divisible by the number (18) 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 155614099968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232513739634).

155614099968 is an abundant number, since it is smaller than the sum of its proper divisors (309413379300).

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

155614099968 is an equidigital number, since it uses as much as digits as its factorization.

155614099968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556 (or 4531 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 155614099968 in words is "one hundred fifty-five billion, six hundred fourteen million, ninety-nine thousand, nine hundred sixty-eight".