65665110500 has 48 divisors (see below), whose sum is σ = 156450123648. Its totient is φ = 23878220000.

The previous prime is 65665110491. The next prime is 65665110521. The reversal of 65665110500 is 501156656.

65665110500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5964056 + ... + 5975055.

It is an arithmetic number, because the mean of its divisors is an integer number (3259377576).

Almost surely, 2^65665110500 is an apocalyptic number.

It is an amenable number.

65665110500 is an abundant number, since it is smaller than the sum of its proper divisors (90785013148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65665110500 is a wasteful number, since it uses less digits than its factorization.

65665110500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11939141 (or 11939129 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

It can be divided in two parts, 656 and 65110500, that added together give a palindrome (65111156).

The spelling of 65665110500 in words is "sixty-five billion, six hundred sixty-five million, one hundred ten thousand, five hundred".