23664464655 has 32 divisors (see below), whose sum is σ = 41384308224. Its totient is φ = 11476308096.

The previous prime is 23664464617. The next prime is 23664464689. The reversal of 23664464655 is 55646446632.

It is not a de Polignac number, because 23664464655 - 2⁶ = 23664464591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23664464598 and 23664464607.

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, 892579 + ... + 918708.

It is an arithmetic number, because the mean of its divisors is an integer number (1293259632).

Almost surely, 2^23664464655 is an apocalyptic number.

23664464655 is a deficient number, since it is larger than the sum of its proper divisors (17719843569).

23664464655 is a wasteful number, since it uses less digits than its factorization.

23664464655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811375.

The product of its digits is 12441600, while the sum is 51.

The spelling of 23664464655 in words is "twenty-three billion, six hundred sixty-four million, four hundred sixty-four thousand, six hundred fifty-five".