66221362 has 8 divisors (see below), whose sum is σ = 99405936. Its totient is φ = 33086052.

The previous prime is 66221359. The next prime is 66221369. The reversal of 66221362 is 26312266.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66221362.

It is not an unprimeable number, because it can be changed into a prime (66221369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8748 + ... + 14455.

It is an arithmetic number, because the mean of its divisors is an integer number (12425742).

Almost surely, 2^66221362 is an apocalyptic number.

66221362 is a deficient number, since it is larger than the sum of its proper divisors (33184574).

66221362 is a wasteful number, since it uses less digits than its factorization.

66221362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24632.

The product of its digits is 5184, while the sum is 28.

The square root of 66221362 is about 8137.6508895381. The cubic root of 66221362 is about 404.5753044384.

The spelling of 66221362 in words is "sixty-six million, two hundred twenty-one thousand, three hundred sixty-two".