66222382 has 16 divisors (see below), whose sum is σ = 104970240. Its totient is φ = 31268952.

The previous prime is 66222337. The next prime is 66222397. The reversal of 66222382 is 28322266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5478 + ... + 12745.

It is an arithmetic number, because the mean of its divisors is an integer number (6560640).

Almost surely, 2^66222382 is an apocalyptic number.

66222382 is a deficient number, since it is larger than the sum of its proper divisors (38747858).

66222382 is a wasteful number, since it uses less digits than its factorization.

66222382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18327.

The product of its digits is 13824, while the sum is 31.

The square root of 66222382 is about 8137.7135609457. The cubic root of 66222382 is about 404.5773816366.

The spelling of 66222382 in words is "sixty-six million, two hundred twenty-two thousand, three hundred eighty-two".