15655881171 has 12 divisors (see below), whose sum is σ = 24282591432. Its totient is φ = 8946217728.

The previous prime is 15655881167. The next prime is 15655881203. The reversal of 15655881171 is 17118855651.

It is not a de Polignac number, because 15655881171 - 2² = 15655881167 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 15655881171.

It is not an unprimeable number, because it can be changed into a prime (15655881121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53251150 + ... + 53251443.

It is an arithmetic number, because the mean of its divisors is an integer number (2023549286).

Almost surely, 2^15655881171 is an apocalyptic number.

15655881171 is a deficient number, since it is larger than the sum of its proper divisors (8626710261).

15655881171 is a wasteful number, since it uses less digits than its factorization.

15655881171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106502610 (or 106502603 counting only the distinct ones).

The product of its digits is 336000, while the sum is 48.

The spelling of 15655881171 in words is "fifteen billion, six hundred fifty-five million, eight hundred eighty-one thousand, one hundred seventy-one".