2312640165 has 32 divisors (see below), whose sum is σ = 4043520000. Its totient is φ = 1119360320.

The previous prime is 2312640079. The next prime is 2312640199. The reversal of 2312640165 is 5610462132.

It is not a de Polignac number, because 2312640165 - 2¹¹ = 2312638117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87136 + ... + 110534.

It is an arithmetic number, because the mean of its divisors is an integer number (126360000).

Almost surely, 2^2312640165 is an apocalyptic number.

It is an amenable number.

2312640165 is a deficient number, since it is larger than the sum of its proper divisors (1730879835).

2312640165 is a wasteful number, since it uses less digits than its factorization.

2312640165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24017.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2312640165 is about 48089.9174983697. The cubic root of 2312640165 is about 1322.4198352167.

The spelling of 2312640165 in words is "two billion, three hundred twelve million, six hundred forty thousand, one hundred sixty-five".