66384533562 has 64 divisors (see below), whose sum is σ = 136433827200. Its totient is φ = 21526145280.

The previous prime is 66384533549. The next prime is 66384533569. The reversal of 66384533562 is 26533548366.

It is not an unprimeable number, because it can be changed into a prime (66384533569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28283673 + ... + 28286019.

It is an arithmetic number, because the mean of its divisors is an integer number (2131778550).

Almost surely, 2^66384533562 is an apocalyptic number.

66384533562 is an abundant number, since it is smaller than the sum of its proper divisors (70049293638).

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

66384533562 is a wasteful number, since it uses less digits than its factorization.

66384533562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231.

The product of its digits is 9331200, while the sum is 51.

The spelling of 66384533562 in words is "sixty-six billion, three hundred eighty-four million, five hundred thirty-three thousand, five hundred sixty-two".