21583141163929 has 16 divisors (see below), whose sum is σ = 22486020480000. Its totient is φ = 20698243274880.

The previous prime is 21583141163887. The next prime is 21583141163939. The reversal of 21583141163929 is 92936114138512.

It is a cyclic number.

It is not a de Polignac number, because 21583141163929 - 2²⁷ = 21583006946201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21583141163929.

It is not an unprimeable number, because it can be changed into a prime (21583141163939) 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, 31859272 + ... + 32529670.

It is an arithmetic number, because the mean of its divisors is an integer number (1405376280000).

Almost surely, 2^{21583141163929} is an apocalyptic number.

It is an amenable number.

21583141163929 is a deficient number, since it is larger than the sum of its proper divisors (902879316071).

21583141163929 is a wasteful number, since it uses less digits than its factorization.

21583141163929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683808.

The product of its digits is 2799360, while the sum is 55.

The spelling of 21583141163929 in words is "twenty-one trillion, five hundred eighty-three billion, one hundred forty-one million, one hundred sixty-three thousand, nine hundred twenty-nine".