3656634136 has 8 divisors (see below), whose sum is σ = 6856189020. Its totient is φ = 1828317064.

The previous prime is 3656634133. The next prime is 3656634221. The reversal of 3656634136 is 6314366563.

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

It is a junction number, because it is equal to n+sod(n) for n = 3656634092 and 3656634101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656634131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228539626 + ... + 228539641.

Almost surely, 2^3656634136 is an apocalyptic number.

It is an amenable number.

3656634136 is a deficient number, since it is larger than the sum of its proper divisors (3199554884).

3656634136 is a wasteful number, since it uses less digits than its factorization.

3656634136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457079273 (or 457079269 counting only the distinct ones).

The product of its digits is 699840, while the sum is 43.

The square root of 3656634136 is about 60470.1094425998. The cubic root of 3656634136 is about 1540.6139869176.

The spelling of 3656634136 in words is "three billion, six hundred fifty-six million, six hundred thirty-four thousand, one hundred thirty-six".