123701265243664 has 20 divisors (see below), whose sum is σ = 239745888701820. Its totient is φ = 61831358481920.

The previous prime is 123701265243637. The next prime is 123701265243701. The reversal of 123701265243664 is 466342562107321.

It can be written as a sum of positive squares in 2 ways, for example, as 23060241243664 + 100641024000000 = 4802108^2 + 10032000^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204580797 + ... + 1204683484.

It is an arithmetic number, because the mean of its divisors is an integer number (11987294435091).

Almost surely, 2^{123701265243664} is an apocalyptic number.

It is an amenable number.

123701265243664 is a deficient number, since it is larger than the sum of its proper divisors (116044623458156).

123701265243664 is a wasteful number, since it uses less digits than its factorization.

123701265243664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409267498 (or 2409267492 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 123701265243664 in words is "one hundred twenty-three trillion, seven hundred one billion, two hundred sixty-five million, two hundred forty-three thousand, six hundred sixty-four".