2136656264 has 24 divisors (see below), whose sum is σ = 4066985790. Its totient is φ = 1052365248.

The previous prime is 2136656261. The next prime is 2136656281. The reversal of 2136656264 is 4626566312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1759131364 + 377524900 = 41942^2 + 19430^2 .

It is not an unprimeable number, because it can be changed into a prime (2136656261) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6164 + ... + 65660.

Almost surely, 2^2136656264 is an apocalyptic number.

It is an amenable number.

2136656264 is a deficient number, since it is larger than the sum of its proper divisors (1930329526).

2136656264 is an equidigital number, since it uses as much as digits as its factorization.

2136656264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59637 (or 59566 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 2136656264 is about 46223.9793180985. The cubic root of 2136656264 is about 1287.9872190520.

The spelling of 2136656264 in words is "two billion, one hundred thirty-six million, six hundred fifty-six thousand, two hundred sixty-four".