66223182 has 64 divisors (see below), whose sum is σ = 143700480. Its totient is φ = 20302464.

The previous prime is 66223181. The next prime is 66223207. The reversal of 66223182 is 28132266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66223181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396463 + ... + 396629.

It is an arithmetic number, because the mean of its divisors is an integer number (2245320).

Almost surely, 2^66223182 is an apocalyptic number.

66223182 is an abundant number, since it is smaller than the sum of its proper divisors (77477298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66223182 is a wasteful number, since it uses less digits than its factorization.

66223182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its digits is 6912, while the sum is 30.

The square root of 66223182 is about 8137.7627146532. The cubic root of 66223182 is about 404.5790107968.

The spelling of 66223182 in words is "sixty-six million, two hundred twenty-three thousand, one hundred eighty-two".