66565515162 has 16 divisors (see below), whose sum is σ = 133189422912. Its totient is φ = 22178772960.

The previous prime is 66565515151. The next prime is 66565515167. The reversal of 66565515162 is 26151556566.

It is not an unprimeable number, because it can be changed into a prime (66565515167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2418198 + ... + 2445569.

It is an arithmetic number, because the mean of its divisors is an integer number (8324338932).

Almost surely, 2^66565515162 is an apocalyptic number.

66565515162 is an abundant number, since it is smaller than the sum of its proper divisors (66623907750).

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

66565515162 is a wasteful number, since it uses less digits than its factorization.

66565515162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4866053.

The product of its digits is 1620000, while the sum is 48.

The spelling of 66565515162 in words is "sixty-six billion, five hundred sixty-five million, five hundred fifteen thousand, one hundred sixty-two".