66235424265 has 24 divisors (see below), whose sum is σ = 119799725760. Its totient is φ = 33789665184.

The previous prime is 66235424257. The next prime is 66235424303. The reversal of 66235424265 is 56242453266.

66235424265 is a `hidden beast` number, since 6 + 6 + 2 + 3 + 542 + 42 + 65 = 666.

It is not a de Polignac number, because 66235424265 - 2³ = 66235424257 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66235424265.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31996755 + ... + 31998824.

It is an arithmetic number, because the mean of its divisors is an integer number (4991655240).

Almost surely, 2^66235424265 is an apocalyptic number.

It is an amenable number.

66235424265 is a deficient number, since it is larger than the sum of its proper divisors (53564301495).

66235424265 is a wasteful number, since it uses less digits than its factorization.

66235424265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63995613 (or 63995610 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The spelling of 66235424265 in words is "sixty-six billion, two hundred thirty-five million, four hundred twenty-four thousand, two hundred sixty-five".