664022466 has 24 divisors (see below), whose sum is σ = 1501269120. Its totient is φ = 211717176.

The previous prime is 664022353. The next prime is 664022467. The reversal of 664022466 is 664220466.

664022466 is a `hidden beast` number, since 6 + 6 + 402 + 246 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 664022466.

It is not an unprimeable number, because it can be changed into a prime (664022467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801546 + ... + 802373.

It is an arithmetic number, because the mean of its divisors is an integer number (62552880).

Almost surely, 2^664022466 is an apocalyptic number.

664022466 is an abundant number, since it is smaller than the sum of its proper divisors (837246654).

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

664022466 is a wasteful number, since it uses less digits than its factorization.

664022466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603950 (or 1603947 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 664022466 is about 25768.6333747058. The cubic root of 664022466 is about 872.4239733647.

The spelling of 664022466 in words is "six hundred sixty-four million, twenty-two thousand, four hundred sixty-six".