16666166676 has 24 divisors (see below), whose sum is σ = 38991989344. Its totient is φ = 5540493600.

The previous prime is 16666166633. The next prime is 16666166681. The reversal of 16666166676 is 67666166661.

It is a super-2 number, since 2×16666166676² (a number of 21 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 7 ways as a sum of consecutive naturals, for example, 1857250 + ... + 1866201.

Almost surely, 2^16666166676 is an apocalyptic number.

It is an amenable number.

16666166676 is an abundant number, since it is smaller than the sum of its proper divisors (22325822668).

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

16666166676 is a wasteful number, since it uses less digits than its factorization.

16666166676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723831 (or 3723829 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 57.

The spelling of 16666166676 in words is "sixteen billion, six hundred sixty-six million, one hundred sixty-six thousand, six hundred seventy-six".