3656111656 has 8 divisors (see below), whose sum is σ = 6855209370. Its totient is φ = 1828055824.

The previous prime is 3656111653. The next prime is 3656111659. The reversal of 3656111656 is 6561116563.

It is an interprime number because it is at equal distance from previous prime (3656111653) and next prime (3656111659).

It can be written as a sum of positive squares in only one way, i.e., 3640191556 + 15920100 = 60334^2 + 3990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×3656111656² = 26734304882278124672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3656111653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228506971 + ... + 228506986.

Almost surely, 2^3656111656 is an apocalyptic number.

It is an amenable number.

3656111656 is a deficient number, since it is larger than the sum of its proper divisors (3199097714).

3656111656 is a wasteful number, since it uses less digits than its factorization.

3656111656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457013963 (or 457013959 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 3656111656 is about 60465.7891373295. The cubic root of 3656111656 is about 1540.5406062887.

The spelling of 3656111656 in words is "three billion, six hundred fifty-six million, one hundred eleven thousand, six hundred fifty-six".