15511600117161 has 16 divisors (see below), whose sum is σ = 23183512470720. Its totient is φ = 10249552877760.

The previous prime is 15511600117157. The next prime is 15511600117187. The reversal of 15511600117161 is 16171100611551.

15511600117161 is a `hidden beast` number, since 1 + 5 + 511 + 6 + 0 + 0 + 11 + 71 + 61 = 666.

It is not a de Polignac number, because 15511600117161 - 2² = 15511600117157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15511600117561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2542048755 + ... + 2542054856.

It is an arithmetic number, because the mean of its divisors is an integer number (1448969529420).

Almost surely, 2^{15511600117161} is an apocalyptic number.

It is an amenable number.

15511600117161 is a deficient number, since it is larger than the sum of its proper divisors (7671912353559).

15511600117161 is a wasteful number, since it uses less digits than its factorization.

15511600117161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084103733 (or 5084103727 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 36.

The spelling of 15511600117161 in words is "fifteen trillion, five hundred eleven billion, six hundred million, one hundred seventeen thousand, one hundred sixty-one".