15611642116 has 12 divisors (see below), whose sum is σ = 31223284288. Its totient is φ = 6690703752.

The previous prime is 15611642089. The next prime is 15611642143. The reversal of 15611642116 is 61124611651.

It is an interprime number because it is at equal distance from previous prime (15611642089) and next prime (15611642143).

15611642116 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278779296 + ... + 278779351.

Almost surely, 2^15611642116 is an apocalyptic number.

It is an amenable number.

15611642116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15611642116 is a wasteful number, since it uses less digits than its factorization.

15611642116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557558658 (or 557558656 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The spelling of 15611642116 in words is "fifteen billion, six hundred eleven million, six hundred forty-two thousand, one hundred sixteen".