16687455712 has 24 divisors (see below), whose sum is σ = 32857064856. Its totient is φ = 8342804352.

The previous prime is 16687455671. The next prime is 16687455721. The reversal of 16687455712 is 21755478661.

It is a super-2 number, since 2×16687455712² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16687455712.

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, 335563 + ... + 382069.

It is an arithmetic number, because the mean of its divisors is an integer number (1369044369).

Almost surely, 2^16687455712 is an apocalyptic number.

It is an amenable number.

16687455712 is a deficient number, since it is larger than the sum of its proper divisors (16169609144).

16687455712 is a wasteful number, since it uses less digits than its factorization.

16687455712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57730 (or 57722 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 52.

The spelling of 16687455712 in words is "sixteen billion, six hundred eighty-seven million, four hundred fifty-five thousand, seven hundred twelve".