20838256715601 has 16 divisors (see below), whose sum is σ = 33246221541120. Its totient is φ = 12823542594000.

The previous prime is 20838256715579. The next prime is 20838256715659. The reversal of 20838256715601 is 10651765283802.

20838256715601 is a `hidden beast` number, since 2 + 0 + 8 + 3 + 8 + 2 + 5 + 6 + 71 + 560 + 1 = 666.

It is not a de Polignac number, because 20838256715601 - 2³¹ = 20836109231953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20838256715501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29684126025 + ... + 29684126726.

It is an arithmetic number, because the mean of its divisors is an integer number (2077888846320).

Almost surely, 2^{20838256715601} is an apocalyptic number.

It is an amenable number.

20838256715601 is a deficient number, since it is larger than the sum of its proper divisors (12407964825519).

20838256715601 is a wasteful number, since it uses less digits than its factorization.

20838256715601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59368252773 (or 59368252767 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 20838256715601 in words is "twenty trillion, eight hundred thirty-eight billion, two hundred fifty-six million, seven hundred fifteen thousand, six hundred one".