21616216552162 has 8 divisors (see below), whose sum is σ = 32463722552256. Its totient is φ = 10794975701412.

The previous prime is 21616216552127. The next prime is 21616216552181. The reversal of 21616216552162 is 26125561261612.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 6566285278 + ... + 6566288569.

It is an arithmetic number, because the mean of its divisors is an integer number (4057965319032).

Almost surely, 2^{21616216552162} is an apocalyptic number.

21616216552162 is a deficient number, since it is larger than the sum of its proper divisors (10847506000094).

21616216552162 is a wasteful number, since it uses less digits than its factorization.

21616216552162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132574672.

The product of its digits is 518400, while the sum is 46.

The spelling of 21616216552162 in words is "twenty-one trillion, six hundred sixteen billion, two hundred sixteen million, five hundred fifty-two thousand, one hundred sixty-two".