2312665656 has 64 divisors (see below), whose sum is σ = 6614887680. Its totient is φ = 660034560.

The previous prime is 2312665633. The next prime is 2312665673. The reversal of 2312665656 is 6565662132.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 156040 + ... + 170216.

It is an arithmetic number, because the mean of its divisors is an integer number (103357620).

Almost surely, 2^2312665656 is an apocalyptic number.

It is an amenable number.

2312665656 is an abundant number, since it is smaller than the sum of its proper divisors (4302222024).

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

2312665656 is a wasteful number, since it uses less digits than its factorization.

2312665656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15164 (or 15160 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 2312665656 is about 48090.1825324047. The cubic root of 2312665656 is about 1322.4246939752.

The spelling of 2312665656 in words is "two billion, three hundred twelve million, six hundred sixty-five thousand, six hundred fifty-six".