23666358923 has 4 divisors (see below), whose sum is σ = 24429789888. Its totient is φ = 22902927960.

The previous prime is 23666358913. The next prime is 23666358943. The reversal of 23666358923 is 32985366632.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23666358923 - 2⁴ = 23666358907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23666358913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381715436 + ... + 381715497.

It is an arithmetic number, because the mean of its divisors is an integer number (6107447472).

Almost surely, 2^23666358923 is an apocalyptic number.

23666358923 is a deficient number, since it is larger than the sum of its proper divisors (763430965).

23666358923 is an equidigital number, since it uses as much as digits as its factorization.

23666358923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763430964.

The product of its digits is 8398080, while the sum is 53.

The spelling of 23666358923 in words is "twenty-three billion, six hundred sixty-six million, three hundred fifty-eight thousand, nine hundred twenty-three".