6617264660 has 24 divisors (see below), whose sum is σ = 14375438280. Its totient is φ = 2555633024.

The previous prime is 6617264629. The next prime is 6617264663. The reversal of 6617264660 is 664627166.

It can be written as a sum of positive squares in 4 ways, for example, as 1128825604 + 5488439056 = 33598^2 + 74084^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6617264663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5703959 + ... + 5705118.

It is an arithmetic number, because the mean of its divisors is an integer number (598976595).

Almost surely, 2^6617264660 is an apocalyptic number.

It is an amenable number.

6617264660 is an abundant number, since it is smaller than the sum of its proper divisors (7758173620).

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

6617264660 is a wasteful number, since it uses less digits than its factorization.

6617264660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409115 (or 11409113 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 6617264660 is about 81346.5712860720. The cubic root of 6617264660 is about 1877.4116201690.

The spelling of 6617264660 in words is "six billion, six hundred seventeen million, two hundred sixty-four thousand, six hundred sixty".