666533622 has 32 divisors (see below), whose sum is σ = 1382652000. Its totient is φ = 213954048.

The previous prime is 666533611. The next prime is 666533627. The reversal of 666533622 is 226335666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666533627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64254 + ... + 73902.

It is an arithmetic number, because the mean of its divisors is an integer number (43207875).

Almost surely, 2^666533622 is an apocalyptic number.

666533622 is an abundant number, since it is smaller than the sum of its proper divisors (716118378).

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

666533622 is a wasteful number, since it uses less digits than its factorization.

666533622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080.

The product of its digits is 233280, while the sum is 39.

The square root of 666533622 is about 25817.3124472707. The cubic root of 666533622 is about 873.5223482592.

The spelling of 666533622 in words is "six hundred sixty-six million, five hundred thirty-three thousand, six hundred twenty-two".