5656138236 has 36 divisors (see below), whose sum is σ = 16339955632. Its totient is φ = 1616039424.

The previous prime is 5656138157. The next prime is 5656138259. The reversal of 5656138236 is 6328316565.

5656138236 is a `hidden beast` number, since 5 + 6 + 5 + 613 + 8 + 23 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 5656138191 and 5656138200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11222245 + ... + 11222748.

Almost surely, 2^5656138236 is an apocalyptic number.

It is an amenable number.

5656138236 is an abundant number, since it is smaller than the sum of its proper divisors (10683817396).

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

5656138236 is a wasteful number, since it uses less digits than its factorization.

5656138236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22445010 (or 22445005 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 5656138236 is about 75207.3017465725. The cubic root of 5656138236 is about 1781.7222564027.

The spelling of 5656138236 in words is "five billion, six hundred fifty-six million, one hundred thirty-eight thousand, two hundred thirty-six".