16324639004 has 12 divisors (see below), whose sum is σ = 28579687584. Its totient is φ = 8159013984.

The previous prime is 16324638991. The next prime is 16324639033. The reversal of 16324639004 is 40093642361.

It is a happy number.

It is a super-2 number, since 2×16324639004² (a number of 21 digits) contains 22 as substring.

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, 815252 + ... + 835035.

It is an arithmetic number, because the mean of its divisors is an integer number (2381640632).

Almost surely, 2^16324639004 is an apocalyptic number.

It is an amenable number.

16324639004 is a deficient number, since it is larger than the sum of its proper divisors (12255048580).

16324639004 is a wasteful number, since it uses less digits than its factorization.

16324639004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652764 (or 1652762 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 16324639004 in words is "sixteen billion, three hundred twenty-four million, six hundred thirty-nine thousand, four".