492166566 has 12 divisors (see below), whose sum is σ = 1066360932. Its totient is φ = 164055516.

The previous prime is 492166559. The next prime is 492166567. The reversal of 492166566 is 665661294.

492166566 is a `hidden beast` number, since 4 + 9 + 21 + 66 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492166567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13671276 + ... + 13671311.

It is an arithmetic number, because the mean of its divisors is an integer number (88863411).

Almost surely, 2^492166566 is an apocalyptic number.

492166566 is an abundant number, since it is smaller than the sum of its proper divisors (574194366).

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

492166566 is a wasteful number, since it uses less digits than its factorization.

492166566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27342595 (or 27342592 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 492166566 is about 22184.8273826956. The cubic root of 492166566 is about 789.5337557560.

The spelling of 492166566 in words is "four hundred ninety-two million, one hundred sixty-six thousand, five hundred sixty-six".