21616232035416 has 16 divisors (see below), whose sum is σ = 54040580088600. Its totient is φ = 7205410678464.

The previous prime is 21616232035403. The next prime is 21616232035441. The reversal of 21616232035416 is 61453023261612.

It is a super-2 number, since 2×21616232035416² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450338167381 + ... + 450338167428.

Almost surely, 2^{21616232035416} is an apocalyptic number.

It is an amenable number.

21616232035416 is an abundant number, since it is smaller than the sum of its proper divisors (32424348053184).

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

21616232035416 is a wasteful number, since it uses less digits than its factorization.

21616232035416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900676334818 (or 900676334814 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 21616232035416 in words is "twenty-one trillion, six hundred sixteen billion, two hundred thirty-two million, thirty-five thousand, four hundred sixteen".