21616051045122 has 48 divisors (see below), whose sum is σ = 47612575876320. Its totient is φ = 7086657943296.

The previous prime is 21616051045073. The next prime is 21616051045133. The reversal of 21616051045122 is 22154015061612.

21616051045122 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 605 + 1 + 0 + 45 + 1 + 2 + 2 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 40103823 + ... + 40639250.

It is an arithmetic number, because the mean of its divisors is an integer number (991928664090).

Almost surely, 2^{21616051045122} is an apocalyptic number.

21616051045122 is an abundant number, since it is smaller than the sum of its proper divisors (25996524831198).

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

21616051045122 is a wasteful number, since it uses less digits than its factorization.

21616051045122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80743327 (or 80743324 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 21616051045122 in words is "twenty-one trillion, six hundred sixteen billion, fifty-one million, forty-five thousand, one hundred twenty-two".