2656631144 has 16 divisors (see below), whose sum is σ = 4981793220. Its totient is φ = 1328152960.

The previous prime is 2656631113. The next prime is 2656631171. The reversal of 2656631144 is 4411366562.

It can be written as a sum of positive squares in 2 ways, for example, as 2638055044 + 18576100 = 51362^2 + 4310^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2656631098 and 2656631107.

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, 75902 + ... + 105234.

Almost surely, 2^2656631144 is an apocalyptic number.

It is an amenable number.

2656631144 is a deficient number, since it is larger than the sum of its proper divisors (2325162076).

2656631144 is a wasteful number, since it uses less digits than its factorization.

2656631144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40660 (or 40656 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 2656631144 is about 51542.5178275179. The cubic root of 2656631144 is about 1384.9808012561.

The spelling of 2656631144 in words is "two billion, six hundred fifty-six million, six hundred thirty-one thousand, one hundred forty-four".