16520364356 has 24 divisors (see below), whose sum is σ = 29649424896. Its totient is φ = 8049558080.

The previous prime is 16520364331. The next prime is 16520364379. The reversal of 16520364356 is 65346302561.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88685 + ... + 202251.

It is an arithmetic number, because the mean of its divisors is an integer number (1235392704).

Almost surely, 2^16520364356 is an apocalyptic number.

It is an amenable number.

16520364356 is a deficient number, since it is larger than the sum of its proper divisors (13129060540).

16520364356 is a wasteful number, since it uses less digits than its factorization.

16520364356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114499 (or 114497 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 16520364356 in words is "sixteen billion, five hundred twenty million, three hundred sixty-four thousand, three hundred fifty-six".