11655159120 has 160 divisors (see below), whose sum is σ = 43795232640. Its totient is φ = 2825487360.

The previous prime is 11655159107. The next prime is 11655159157. The reversal of 11655159120 is 2195155611.

11655159120 is a `hidden beast` number, since 1 + 1 + 65 + 5 + 1 + 591 + 2 + 0 = 666.

It is a super-2 number, since 2×11655159120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221509 + ... + 269028.

It is an arithmetic number, because the mean of its divisors is an integer number (273720204).

Almost surely, 2^11655159120 is an apocalyptic number.

11655159120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11655159120 is an abundant number, since it is smaller than the sum of its proper divisors (32140073520).

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

11655159120 is a wasteful number, since it uses less digits than its factorization.

11655159120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490570 (or 490558 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 36.

The spelling of 11655159120 in words is "eleven billion, six hundred fifty-five million, one hundred fifty-nine thousand, one hundred twenty".