18720253338600 has 192 divisors, whose sum is σ = 66061036823040. Its totient is φ = 4340928275200.

The previous prime is 18720253338593. The next prime is 18720253338641. The reversal of 18720253338600 is 683335202781.

It is a super-2 number, since 2×18720253338600² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18720253338600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61509114 + ... + 61812713.

It is an arithmetic number, because the mean of its divisors is an integer number (344067900120).

Almost surely, 2^{18720253338600} is an apocalyptic number.

18720253338600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18720253338600 is an abundant number, since it is smaller than the sum of its proper divisors (47340783484440).

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

18720253338600 is a wasteful number, since it uses less digits than its factorization.

18720253338600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123321880 (or 123321871 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 18720253338600 in words is "eighteen trillion, seven hundred twenty billion, two hundred fifty-three million, three hundred thirty-eight thousand, six hundred".