16373581056 has 432 divisors, whose sum is σ = 58926067200. Its totient is φ = 4429707264.

The previous prime is 16373581043. The next prime is 16373581061. The reversal of 16373581056 is 65018537361.

16373581056 is a `hidden beast` number, since 1 + 63 + 7 + 3 + 581 + 0 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8272675 + ... + 8274653.

Almost surely, 2^16373581056 is an apocalyptic number.

16373581056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16373581056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29463033600).

16373581056 is an abundant number, since it is smaller than the sum of its proper divisors (42552486144).

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

16373581056 is an equidigital number, since it uses as much as digits as its factorization.

16373581056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 16373581056 in words is "sixteen billion, three hundred seventy-three million, five hundred eighty-one thousand, fifty-six".