6656235264 has 270 divisors, whose sum is σ = 23091652584. Its totient is φ = 1901491200.

The previous prime is 6656235263. The next prime is 6656235293. The reversal of 6656235264 is 4625326566.

6656235264 is a `hidden beast` number, since 6 + 65 + 62 + 3 + 526 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656235263) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1012789 + ... + 1019339.

Almost surely, 2^6656235264 is an apocalyptic number.

6656235264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6656235264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11545826292).

6656235264 is an abundant number, since it is smaller than the sum of its proper divisors (16435417320).

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

6656235264 is an equidigital number, since it uses as much as digits as its factorization.

6656235264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6593 (or 6563 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The square root of 6656235264 is about 81585.7540505694. The cubic root of 6656235264 is about 1881.0899127522.

The spelling of 6656235264 in words is "six billion, six hundred fifty-six million, two hundred thirty-five thousand, two hundred sixty-four".