3656866676 has 12 divisors (see below), whose sum is σ = 6456150372. Its totient is φ = 1812252288.

The previous prime is 3656866663. The next prime is 3656866687. The reversal of 3656866676 is 6766686563.

It can be written as a sum of positive squares in 2 ways, for example, as 1027843600 + 2629023076 = 32060^2 + 51274^2 .

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, 4044755 + ... + 4045658.

It is an arithmetic number, because the mean of its divisors is an integer number (538012531).

Almost surely, 2^3656866676 is an apocalyptic number.

It is an amenable number.

3656866676 is a deficient number, since it is larger than the sum of its proper divisors (2799283696).

3656866676 is a wasteful number, since it uses less digits than its factorization.

3656866676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8090530 (or 8090528 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 59.

The square root of 3656866676 is about 60472.0321801740. The cubic root of 3656866676 is about 1540.6466441619.

The spelling of 3656866676 in words is "three billion, six hundred fifty-six million, eight hundred sixty-six thousand, six hundred seventy-six".