2656565630 has 64 divisors (see below), whose sum is σ = 4949797248. Its totient is φ = 1026201600.

The previous prime is 2656565609. The next prime is 2656565633. The reversal of 2656565630 is 365656562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656565633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10100879 + ... + 10101141.

It is an arithmetic number, because the mean of its divisors is an integer number (77340582).

Almost surely, 2^2656565630 is an apocalyptic number.

2656565630 is a deficient number, since it is larger than the sum of its proper divisors (2293231618).

2656565630 is a wasteful number, since it uses less digits than its factorization.

2656565630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 972000, while the sum is 44.

The square root of 2656565630 is about 51541.8822900367. The cubic root of 2656565630 is about 1384.9694163638.

The spelling of 2656565630 in words is "two billion, six hundred fifty-six million, five hundred sixty-five thousand, six hundred thirty".