16987395968 has 32 divisors (see below), whose sum is σ = 35623245000. Its totient is φ = 8046660096.

The previous prime is 16987395899. The next prime is 16987395983. The reversal of 16987395968 is 86959378961.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent 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, 3490043 + ... + 3494906.

Almost surely, 2^16987395968 is an apocalyptic number.

It is an amenable number.

16987395968 is an abundant number, since it is smaller than the sum of its proper divisors (18635849032).

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

16987395968 is an equidigital number, since it uses as much as digits as its factorization.

16987395968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6984982 (or 6984970 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 71.

The spelling of 16987395968 in words is "sixteen billion, nine hundred eighty-seven million, three hundred ninety-five thousand, nine hundred sixty-eight".