5656155642 has 20 divisors (see below), whose sum is σ = 12673978746. Its totient is φ = 1885385160.

The previous prime is 5656155539. The next prime is 5656155671. The reversal of 5656155642 is 2465516565.

5656155642 is a `hidden beast` number, since 5 + 6 + 56 + 1 + 556 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4424777361 + 1231378281 = 66519^2 + 35091^2 .

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 an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17457109 + ... + 17457432.

Almost surely, 2^5656155642 is an apocalyptic number.

5656155642 is an abundant number, since it is smaller than the sum of its proper divisors (7017823104).

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

5656155642 is a wasteful number, since it uses less digits than its factorization.

5656155642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34914555 (or 34914546 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The square root of 5656155642 is about 75207.4174666302. The cubic root of 5656155642 is about 1781.7240840706.

The spelling of 5656155642 in words is "five billion, six hundred fifty-six million, one hundred fifty-five thousand, six hundred forty-two".