23665433623 has 16 divisors (see below), whose sum is σ = 25631424000. Its totient is φ = 21720394080.

The previous prime is 23665433599. The next prime is 23665433633. The reversal of 23665433623 is 32633456632.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23665433623 - 2⁵ = 23665433591 is a prime.

It is a super-2 number, since 2×23665433623² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23665433623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23665433633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6049038 + ... + 6052948.

It is an arithmetic number, because the mean of its divisors is an integer number (1601964000).

Almost surely, 2^23665433623 is an apocalyptic number.

23665433623 is a deficient number, since it is larger than the sum of its proper divisors (1965990377).

23665433623 is a wasteful number, since it uses less digits than its factorization.

23665433623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462.

The product of its digits is 1399680, while the sum is 43.

The spelling of 23665433623 in words is "twenty-three billion, six hundred sixty-five million, four hundred thirty-three thousand, six hundred twenty-three".