23664063455 has 4 divisors (see below), whose sum is σ = 28396876152. Its totient is φ = 18931250760.

The previous prime is 23664063433. The next prime is 23664063463. The reversal of 23664063455 is 55436046632.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23664063455 - 2¹² = 23664059359 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 2366406341 + ... + 2366406350.

It is an arithmetic number, because the mean of its divisors is an integer number (7099219038).

Almost surely, 2^23664063455 is an apocalyptic number.

23664063455 is a deficient number, since it is larger than the sum of its proper divisors (4732812697).

23664063455 is an equidigital number, since it uses as much as digits as its factorization.

23664063455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732812696.

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 23664063455 in words is "twenty-three billion, six hundred sixty-four million, sixty-three thousand, four hundred fifty-five".