3656516634 has 16 divisors (see below), whose sum is σ = 8125592640. Its totient is φ = 1218838860.

The previous prime is 3656516629. The next prime is 3656516641. The reversal of 3656516634 is 4366156563.

3656516634 is a `hidden beast` number, since 3 + 6 + 5 + 6 + 5 + 1 + 6 + 634 = 666.

It is a super-2 number, since 2×3656516634² = 26740227789437379912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3656516634.

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, 33856582 + ... + 33856689.

It is an arithmetic number, because the mean of its divisors is an integer number (507849540).

Almost surely, 2^3656516634 is an apocalyptic number.

3656516634 is an abundant number, since it is smaller than the sum of its proper divisors (4469076006).

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

3656516634 is a wasteful number, since it uses less digits than its factorization.

3656516634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67713282 (or 67713276 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The square root of 3656516634 is about 60469.1378638723. The cubic root of 3656516634 is about 1540.5974847504.

The spelling of 3656516634 in words is "three billion, six hundred fifty-six million, five hundred sixteen thousand, six hundred thirty-four".