2656573272 has 192 divisors, whose sum is σ = 8018300160. Its totient is φ = 790732800.

The previous prime is 2656573267. The next prime is 2656573307. The reversal of 2656573272 is 2723756562.

2656573272 is a `hidden beast` number, since 2 + 6 + 5 + 6 + 573 + 2 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2010372 + ... + 2011692.

It is an arithmetic number, because the mean of its divisors is an integer number (41761980).

Almost surely, 2^2656573272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2656573272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4009150080).

2656573272 is an abundant number, since it is smaller than the sum of its proper divisors (5361726888).

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

2656573272 is a wasteful number, since it uses less digits than its factorization.

2656573272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1427 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The square root of 2656573272 is about 51541.9564238689. The cubic root of 2656573272 is about 1384.9707443850.

The spelling of 2656573272 in words is "two billion, six hundred fifty-six million, five hundred seventy-three thousand, two hundred seventy-two".