23575340565 has 48 divisors (see below), whose sum is σ = 46744134528. Its totient is φ = 10767489408.

The previous prime is 23575340549. The next prime is 23575340609. The reversal of 23575340565 is 56504357532.

23575340565 is a `hidden beast` number, since 2 + 3 + 57 + 5 + 34 + 0 + 565 = 666.

It is not a de Polignac number, because 23575340565 - 2⁴ = 23575340549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23575340565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318354 + ... + 385356.

It is an arithmetic number, because the mean of its divisors is an integer number (973836136).

Almost surely, 2^23575340565 is an apocalyptic number.

It is an amenable number.

23575340565 is a deficient number, since it is larger than the sum of its proper divisors (23168793963).

23575340565 is a wasteful number, since it uses less digits than its factorization.

23575340565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68138 (or 68135 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 45.

The spelling of 23575340565 in words is "twenty-three billion, five hundred seventy-five million, three hundred forty thousand, five hundred sixty-five".