16987000456 has 8 divisors (see below), whose sum is σ = 31850625870. Its totient is φ = 8493500224.

The previous prime is 16987000409. The next prime is 16987000487. The reversal of 16987000456 is 65400078961.

It can be written as a sum of positive squares in only one way, i.e., 9942084100 + 7044916356 = 99710^2 + 83934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061687521 + ... + 1061687536.

Almost surely, 2^16987000456 is an apocalyptic number.

It is an amenable number.

16987000456 is a deficient number, since it is larger than the sum of its proper divisors (14863625414).

16987000456 is a wasteful number, since it uses less digits than its factorization.

16987000456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123375063 (or 2123375059 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 16987000456 in words is "sixteen billion, nine hundred eighty-seven million, four hundred fifty-six", and thus it is an aban number.