16666584932616 has 64 divisors (see below), whose sum is σ = 43866871142400. Its totient is φ = 5262239631168.

The previous prime is 16666584932581. The next prime is 16666584932629. The reversal of 16666584932616 is 61623948566661.

It is a super-2 number, since 2×16666584932616² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404076 + ... + 5787611.

It is an arithmetic number, because the mean of its divisors is an integer number (685419861600).

Almost surely, 2^{16666584932616} is an apocalyptic number.

It is an amenable number.

16666584932616 is an abundant number, since it is smaller than the sum of its proper divisors (27200286209784).

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

16666584932616 is a wasteful number, since it uses less digits than its factorization.

16666584932616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197618 (or 6197614 counting only the distinct ones).

The product of its digits is 403107840, while the sum is 69.

The spelling of 16666584932616 in words is "sixteen trillion, six hundred sixty-six billion, five hundred eighty-four million, nine hundred thirty-two thousand, six hundred sixteen".