16604515653025 has 48 divisors (see below), whose sum is σ = 23226810710400. Its totient is φ = 11711990568960.

The previous prime is 16604515653017. The next prime is 16604515653053. The reversal of 16604515653025 is 52035651540661.

It is a happy number.

It is not a de Polignac number, because 16604515653025 - 2³ = 16604515653017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16604515653025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20134480 + ... + 20942929.

It is an arithmetic number, because the mean of its divisors is an integer number (483891889800).

Almost surely, 2^{16604515653025} is an apocalyptic number.

It is an amenable number.

16604515653025 is a deficient number, since it is larger than the sum of its proper divisors (6622295057375).

16604515653025 is a wasteful number, since it uses less digits than its factorization.

16604515653025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41077498 (or 41077493 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 16604515653025 in words is "sixteen trillion, six hundred four billion, five hundred fifteen million, six hundred fifty-three thousand, twenty-five".