2136855568 has 20 divisors (see below), whose sum is σ = 4148605008. Its totient is φ = 1066247840.

The previous prime is 2136855551. The next prime is 2136855571. The reversal of 2136855568 is 8655586312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128146 + ... + 143857.

Almost surely, 2^2136855568 is an apocalyptic number.

It is an amenable number.

2136855568 is a deficient number, since it is larger than the sum of its proper divisors (2011749440).

2136855568 is a wasteful number, since it uses less digits than its factorization.

2136855568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272502 (or 272496 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 49.

The square root of 2136855568 is about 46226.1351185669. The cubic root of 2136855568 is about 1288.0272649604.

The spelling of 2136855568 in words is "two billion, one hundred thirty-six million, eight hundred fifty-five thousand, five hundred sixty-eight".