666623365022 has 8 divisors (see below), whose sum is σ = 1023189351096. Its totient is φ = 325560247992.

The previous prime is 666623365019. The next prime is 666623365043. The reversal of 666623365022 is 220563326666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3875717153 + ... + 3875717324.

It is an arithmetic number, because the mean of its divisors is an integer number (127898668887).

Almost surely, 2^666623365022 is an apocalyptic number.

666623365022 is a deficient number, since it is larger than the sum of its proper divisors (356565986074).

666623365022 is a wasteful number, since it uses less digits than its factorization.

666623365022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751434522.

The product of its (nonzero) digits is 2799360, while the sum is 47.

The spelling of 666623365022 in words is "six hundred sixty-six billion, six hundred twenty-three million, three hundred sixty-five thousand, twenty-two".