2331659664 has 60 divisors (see below), whose sum is σ = 6541078492. Its totient is φ = 775353600.

The previous prime is 2331659663. The next prime is 2331659683. The reversal of 2331659664 is 4669561332.

2331659664 is a `hidden beast` number, since 23 + 31 + 6 + 596 + 6 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 141419664 + 2190240000 = 11892^2 + 46800^2 .

It is not an unprimeable number, because it can be changed into a prime (2331659663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41394 + ... + 79854.

Almost surely, 2^2331659664 is an apocalyptic number.

2331659664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2331659664 is an abundant number, since it is smaller than the sum of its proper divisors (4209418828).

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

2331659664 is a wasteful number, since it uses less digits than its factorization.

2331659664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38896 (or 38887 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 2331659664 is about 48287.2619227887. The cubic root of 2331659664 is about 1326.0352017299.

The spelling of 2331659664 in words is "two billion, three hundred thirty-one million, six hundred fifty-nine thousand, six hundred sixty-four".