623336406640560 has 80 divisors (see below), whose sum is σ = 2147047622880480. Its totient is φ = 166223041770240.

The previous prime is 623336406640523. The next prime is 623336406640583. The reversal of 623336406640560 is 65046604633326.

623336406640560 is a `hidden beast` number, since 6 + 2 + 3 + 3 + 36 + 4 + 0 + 6 + 6 + 40 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×623336406640560² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 623336406640497 and 623336406640506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144290832711 + ... + 144290837030.

It is an arithmetic number, because the mean of its divisors is an integer number (26838095286006).

Almost surely, 2^{623336406640560} is an apocalyptic number.

623336406640560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

623336406640560 is an abundant number, since it is smaller than the sum of its proper divisors (1523711216239920).

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

623336406640560 is a wasteful number, since it uses less digits than its factorization.

623336406640560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288581669763 (or 288581669751 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 54.

The spelling of 623336406640560 in words is "six hundred twenty-three trillion, three hundred thirty-six billion, four hundred six million, six hundred forty thousand, five hundred sixty".