16613792818944 has 72 divisors (see below), whose sum is σ = 44222790099600. Its totient is φ = 5537195409408.

The previous prime is 16613792818901. The next prime is 16613792818949. The reversal of 16613792818944 is 44981829731661.

It is a super-2 number, since 2×16613792818944² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16613792818949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4364824 + ... + 7230440.

It is an arithmetic number, because the mean of its divisors is an integer number (614205418050).

Almost surely, 2^{16613792818944} is an apocalyptic number.

It is an amenable number.

16613792818944 is an abundant number, since it is smaller than the sum of its proper divisors (27608997280656).

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

16613792818944 is an equidigital number, since it uses as much as digits as its factorization.

16613792818944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873185 (or 2873171 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 69.

The spelling of 16613792818944 in words is "sixteen trillion, six hundred thirteen billion, seven hundred ninety-two million, eight hundred eighteen thousand, nine hundred forty-four".