16931680025 has 48 divisors (see below), whose sum is σ = 23041858560. Its totient is φ = 12265862400.

The previous prime is 16931680021. The next prime is 16931680063. The reversal of 16931680025 is 52008613961.

It is not a de Polignac number, because 16931680025 - 2² = 16931680021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16931680021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9495284 + ... + 9497066.

It is an arithmetic number, because the mean of its divisors is an integer number (480038720).

Almost surely, 2^16931680025 is an apocalyptic number.

It is an amenable number.

16931680025 is a deficient number, since it is larger than the sum of its proper divisors (6110178535).

16931680025 is a wasteful number, since it uses less digits than its factorization.

16931680025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 16931680025 in words is "sixteen billion, nine hundred thirty-one million, six hundred eighty thousand, twenty-five".