623992352256 has 1440 divisors, whose sum is σ = 2421639380160. Its totient is φ = 150419275776.

The previous prime is 623992352173. The next prime is 623992352273. The reversal of 623992352256 is 652253299326.

623992352256 is a `hidden beast` number, since 6 + 2 + 3 + 99 + 23 + 522 + 5 + 6 = 666.

Its product of digits (10497600) is a multiple of the sum of its prime factors (216).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6432910800 + ... + 6432910896.

It is an arithmetic number, because the mean of its divisors is an integer number (1681694014).

Almost surely, 2^623992352256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623992352256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1210819690080).

623992352256 is an abundant number, since it is smaller than the sum of its proper divisors (1797647027904).

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

623992352256 is a wasteful number, since it uses less digits than its factorization.

623992352256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 174 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 54.

The spelling of 623992352256 in words is "six hundred twenty-three billion, nine hundred ninety-two million, three hundred fifty-two thousand, two hundred fifty-six".