2656681260 has 48 divisors (see below), whose sum is σ = 7442541792. Its totient is φ = 708083200.

The previous prime is 2656681259. The next prime is 2656681277. The reversal of 2656681260 is 621866562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118120 + ... + 138800.

It is an arithmetic number, because the mean of its divisors is an integer number (155052954).

Almost surely, 2^2656681260 is an apocalyptic number.

2656681260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2656681260 is an abundant number, since it is smaller than the sum of its proper divisors (4785860532).

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

2656681260 is a wasteful number, since it uses less digits than its factorization.

2656681260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22834 (or 22832 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2656681260 is about 51543.0039869622. The cubic root of 2656681260 is about 1384.9895101883.

The spelling of 2656681260 in words is "two billion, six hundred fifty-six million, six hundred eighty-one thousand, two hundred sixty".