23603872665 has 16 divisors (see below), whose sum is σ = 37785780288. Its totient is φ = 12582204096.

The previous prime is 23603872661. The next prime is 23603872667. The reversal of 23603872665 is 56627830632.

It is not a de Polignac number, because 23603872665 - 2² = 23603872661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23603872661) 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, 378039 + ... + 436028.

It is an arithmetic number, because the mean of its divisors is an integer number (2361611268).

Almost surely, 2^23603872665 is an apocalyptic number.

It is an amenable number.

23603872665 is a deficient number, since it is larger than the sum of its proper divisors (14181907623).

23603872665 is a wasteful number, since it uses less digits than its factorization.

23603872665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816008.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 23603872665 in words is "twenty-three billion, six hundred three million, eight hundred seventy-two thousand, six hundred sixty-five".