23664565727138 has 48 divisors (see below), whose sum is σ = 41464273818240. Its totient is φ = 10099783685376.

The previous prime is 23664565727069. The next prime is 23664565727141. The reversal of 23664565727138 is 83172756546632.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25114706 + ... + 26039922.

It is an arithmetic number, because the mean of its divisors is an integer number (863839037880).

Almost surely, 2^{23664565727138} is an apocalyptic number.

23664565727138 is a deficient number, since it is larger than the sum of its proper divisors (17799708091102).

23664565727138 is a wasteful number, since it uses less digits than its factorization.

23664565727138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926319 (or 926312 counting only the distinct ones).

The product of its digits is 304819200, while the sum is 65.

The spelling of 23664565727138 in words is "twenty-three trillion, six hundred sixty-four billion, five hundred sixty-five million, seven hundred twenty-seven thousand, one hundred thirty-eight".