21162823124092 has 72 divisors (see below), whose sum is σ = 42851480641200. Its totient is φ = 9108561466368.

The previous prime is 21162823124059. The next prime is 21162823124221. The reversal of 21162823124092 is 29042132826112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7194742 + ... + 9699997.

It is an arithmetic number, because the mean of its divisors is an integer number (595159453350).

Almost surely, 2^{21162823124092} is an apocalyptic number.

It is an amenable number.

21162823124092 is an abundant number, since it is smaller than the sum of its proper divisors (21688657517108).

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

21162823124092 is a wasteful number, since it uses less digits than its factorization.

21162823124092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16894895 (or 16894880 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 21162823124092 in words is "twenty-one trillion, one hundred sixty-two billion, eight hundred twenty-three million, one hundred twenty-four thousand, ninety-two".