15616505056 has 48 divisors (see below), whose sum is σ = 31005446976. Its totient is φ = 7742242816.

The previous prime is 15616504993. The next prime is 15616505057. The reversal of 15616505056 is 65050561651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15616505057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5333865 + ... + 5336791.

It is an arithmetic number, because the mean of its divisors is an integer number (645946812).

Almost surely, 2^15616505056 is an apocalyptic number.

15616505056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15616505056 is a deficient number, since it is larger than the sum of its proper divisors (15388941920).

15616505056 is a wasteful number, since it uses less digits than its factorization.

15616505056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291 (or 4283 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 15616505056 in words is "fifteen billion, six hundred sixteen million, five hundred five thousand, fifty-six".