20499596411904 has 495 divisors, whose sum is σ = 62313620804127. Its totient is φ = 6712799588352.

The previous prime is 20499596411857. The next prime is 20499596411909. The reversal of 20499596411904 is 40911469599402.

The square root of 20499596411904 is 4527648.

It is a perfect power (a square), and thus also a powerful number.

20499596411904 is a `hidden beast` number, since 2 + 0 + 49 + 9 + 5 + 96 + 411 + 90 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (20499596411909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 103013047197 + ... + 103013047395.

Almost surely, 2^{20499596411904} is an apocalyptic number.

20499596411904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

20499596411904 is the 4527648-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20499596411904

20499596411904 is an abundant number, since it is smaller than the sum of its proper divisors (41814024392223).

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

20499596411904 is an frugal number, since it uses more digits than its factorization.

20499596411904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 20499596411904 in words is "twenty trillion, four hundred ninety-nine billion, five hundred ninety-six million, four hundred eleven thousand, nine hundred four".