16628790164 has 24 divisors (see below), whose sum is σ = 33276979008. Its totient is φ = 7122467520.

The previous prime is 16628790149. The next prime is 16628790179. The reversal of 16628790164 is 46109782661.

It is an interprime number because it is at equal distance from previous prime (16628790149) and next prime (16628790179).

It is a Smith number, since the sum of its digits (50) 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 7 ways as a sum of consecutive naturals, for example, 124097 + ... + 220584.

It is an arithmetic number, because the mean of its divisors is an integer number (1386540792).

Almost surely, 2^16628790164 is an apocalyptic number.

16628790164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16628790164 is an abundant number, since it is smaller than the sum of its proper divisors (16648188844).

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

16628790164 is a wasteful number, since it uses less digits than its factorization.

16628790164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346415 (or 346413 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 16628790164 in words is "sixteen billion, six hundred twenty-eight million, seven hundred ninety thousand, one hundred sixty-four".