66222383 has 4 divisors (see below), whose sum is σ = 66280488. Its totient is φ = 66164280.

The previous prime is 66222337. The next prime is 66222397. The reversal of 66222383 is 38322266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38322266 = 2 ⋅19161133.

It is a cyclic number.

It is not a de Polignac number, because 66222383 - 2¹⁰ = 66221359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66222683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27308 + ... + 29633.

It is an arithmetic number, because the mean of its divisors is an integer number (16570122).

Almost surely, 2^66222383 is an apocalyptic number.

66222383 is a deficient number, since it is larger than the sum of its proper divisors (58105).

66222383 is a wasteful number, since it uses less digits than its factorization.

66222383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58104.

The product of its digits is 20736, while the sum is 32.

The square root of 66222383 is about 8137.7136223880. The cubic root of 66222383 is about 404.5773836731.

The spelling of 66222383 in words is "sixty-six million, two hundred twenty-two thousand, three hundred eighty-three".