666658022 has 8 divisors (see below), whose sum is σ = 1000467072. Its totient is φ = 333169000.

The previous prime is 666657989. The next prime is 666658033. The reversal of 666658022 is 220856666.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74729 + ... + 83172.

It is an arithmetic number, because the mean of its divisors is an integer number (125058384).

Almost surely, 2^666658022 is an apocalyptic number.

666658022 is a deficient number, since it is larger than the sum of its proper divisors (333809050).

666658022 is a wasteful number, since it uses less digits than its factorization.

666658022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160014.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 666658022 is about 25819.7215709233. The cubic root of 666658022 is about 873.5766888140.

The spelling of 666658022 in words is "six hundred sixty-six million, six hundred fifty-eight thousand, twenty-two".