623355600450056 has 32 divisors (see below), whose sum is σ = 1226911830157440. Its totient is φ = 296341402334208.

The previous prime is 623355600450047. The next prime is 623355600450067. The reversal of 623355600450056 is 650054006553326.

It is a super-2 number, since 2×623355600450056² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 623355600449986 and 623355600450013.

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, 10143089561 + ... + 10143151016.

It is an arithmetic number, because the mean of its divisors is an integer number (38340994692420).

Almost surely, 2^{623355600450056} is an apocalyptic number.

It is an amenable number.

623355600450056 is a deficient number, since it is larger than the sum of its proper divisors (603556229707384).

623355600450056 is a wasteful number, since it uses less digits than its factorization.

623355600450056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20286240773 (or 20286240769 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 50.

The spelling of 623355600450056 in words is "six hundred twenty-three trillion, three hundred fifty-five billion, six hundred million, four hundred fifty thousand, fifty-six".