16647623004 has 12 divisors (see below), whose sum is σ = 38844453704. Its totient is φ = 5549207664.

The previous prime is 16647622987. The next prime is 16647623011. The reversal of 16647623004 is 40032674661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 693650947 + ... + 693650970.

Almost surely, 2^16647623004 is an apocalyptic number.

It is an amenable number.

16647623004 is an abundant number, since it is smaller than the sum of its proper divisors (22196830700).

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

16647623004 is a wasteful number, since it uses less digits than its factorization.

16647623004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387301924 (or 1387301922 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 16647623004 in words is "sixteen billion, six hundred forty-seven million, six hundred twenty-three thousand, four".