23532566065 has 32 divisors (see below), whose sum is σ = 29140300800. Its totient is φ = 18234547200.

The previous prime is 23532566053. The next prime is 23532566069. The reversal of 23532566065 is 56066523532.

It is not a de Polignac number, because 23532566065 - 2¹⁹ = 23532041777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23532566069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10888585 + ... + 10890745.

It is an arithmetic number, because the mean of its divisors is an integer number (910634400).

Almost surely, 2^23532566065 is an apocalyptic number.

It is an amenable number.

23532566065 is a deficient number, since it is larger than the sum of its proper divisors (5607734735).

23532566065 is a wasteful number, since it uses less digits than its factorization.

23532566065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673.

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 23532566065 in words is "twenty-three billion, five hundred thirty-two million, five hundred sixty-six thousand, sixty-five".