623651444016 has 40 divisors (see below), whose sum is σ = 1615306137600. Its totient is φ = 207341030976.

The previous prime is 623651443997. The next prime is 623651444051. The reversal of 623651444016 is 610444156326.

It is a super-2 number, since 2×623651444016² (a number of 24 digits) contains 22 as substring.

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, 16943416 + ... + 16980183.

It is an arithmetic number, because the mean of its divisors is an integer number (40382653440).

Almost surely, 2^623651444016 is an apocalyptic number.

It is an amenable number.

623651444016 is an abundant number, since it is smaller than the sum of its proper divisors (991654693584).

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

623651444016 is a wasteful number, since it uses less digits than its factorization.

623651444016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33923993 (or 33923987 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 623651444016 in words is "six hundred twenty-three billion, six hundred fifty-one million, four hundred forty-four thousand, sixteen".