66222058 has 16 divisors (see below), whose sum is σ = 113635584. Its totient is φ = 28352880.

The previous prime is 66222053. The next prime is 66222059. The reversal of 66222058 is 85022266.

It is not an unprimeable number, because it can be changed into a prime (66222053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19228 + ... + 22408.

It is an arithmetic number, because the mean of its divisors is an integer number (7102224).

Almost surely, 2^66222058 is an apocalyptic number.

66222058 is a deficient number, since it is larger than the sum of its proper divisors (47413526).

66222058 is a wasteful number, since it uses less digits than its factorization.

66222058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 66222058 is about 8137.6936536097. The cubic root of 66222058 is about 404.5767218230.

The spelling of 66222058 in words is "sixty-six million, two hundred twenty-two thousand, fifty-eight".