666446022 has 64 divisors (see below), whose sum is σ = 1685905920. Its totient is φ = 193168800.

The previous prime is 666446017. The next prime is 666446047. The reversal of 666446022 is 220644666.

666446022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10729 + ... + 38052.

It is an arithmetic number, because the mean of its divisors is an integer number (26342280).

Almost surely, 2^666446022 is an apocalyptic number.

666446022 is an abundant number, since it is smaller than the sum of its proper divisors (1019459898).

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

666446022 is a wasteful number, since it uses less digits than its factorization.

666446022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48826 (or 48820 counting only the distinct ones).

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

The square root of 666446022 is about 25815.6158555243. The cubic root of 666446022 is about 873.4840786668.

The spelling of 666446022 in words is "six hundred sixty-six million, four hundred forty-six thousand, twenty-two".