66222014 has 16 divisors (see below), whose sum is σ = 106997760. Its totient is φ = 30649080.

The previous prime is 66221977. The next prime is 66222019. The reversal of 66222014 is 41022266.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66222019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21794 + ... + 24645.

It is an arithmetic number, because the mean of its divisors is an integer number (6687360).

Almost surely, 2^66222014 is an apocalyptic number.

66222014 is a deficient number, since it is larger than the sum of its proper divisors (40775746).

66222014 is a wasteful number, since it uses less digits than its factorization.

66222014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46495.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 66222014 is about 8137.6909501406. The cubic root of 66222014 is about 404.5766322186.

The spelling of 66222014 in words is "sixty-six million, two hundred twenty-two thousand, fourteen".