992806666 has 8 divisors (see below), whose sum is σ = 1499924160. Its totient is φ = 492831948.

The previous prime is 992806663. The next prime is 992806693. The reversal of 992806666 is 666608299.

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

It is not an unprimeable number, because it can be changed into a prime (992806663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785346 + ... + 1785901.

It is an arithmetic number, because the mean of its divisors is an integer number (187490520).

Almost surely, 2^992806666 is an apocalyptic number.

992806666 is a deficient number, since it is larger than the sum of its proper divisors (507117494).

992806666 is a wasteful number, since it uses less digits than its factorization.

992806666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571388.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 992806666 is about 31508.8347293263. The cubic root of 992806666 is about 997.5964495738.

The spelling of 992806666 in words is "nine hundred ninety-two million, eight hundred six thousand, six hundred sixty-six".