16662815004 has 48 divisors (see below), whose sum is σ = 42429502080. Its totient is φ = 5047544640.

The previous prime is 16662814943. The next prime is 16662815063. The reversal of 16662815004 is 40051826661.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377602 + ... + 419414.

It is an arithmetic number, because the mean of its divisors is an integer number (883947960).

Almost surely, 2^16662815004 is an apocalyptic number.

It is an amenable number.

16662815004 is an abundant number, since it is smaller than the sum of its proper divisors (25766687076).

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

16662815004 is a wasteful number, since it uses less digits than its factorization.

16662815004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44850 (or 44848 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 16662815004 in words is "sixteen billion, six hundred sixty-two million, eight hundred fifteen thousand, four".