2721295656 has 32 divisors (see below), whose sum is σ = 7559155200. Its totient is φ = 907098480.

The previous prime is 2721295639. The next prime is 2721295751. The reversal of 2721295656 is 6565921272.

2721295656 is a `hidden beast` number, since 2 + 72 + 12 + 9 + 565 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6299080 + ... + 6299511.

It is an arithmetic number, because the mean of its divisors is an integer number (236223600).

Almost surely, 2^2721295656 is an apocalyptic number.

It is an amenable number.

2721295656 is an abundant number, since it is smaller than the sum of its proper divisors (4837859544).

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

2721295656 is a wasteful number, since it uses less digits than its factorization.

2721295656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12598606 (or 12598596 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 2721295656 is about 52166.0392976120. The cubic root of 2721295656 is about 1396.1280181338.

The spelling of 2721295656 in words is "two billion, seven hundred twenty-one million, two hundred ninety-five thousand, six hundred fifty-six".