492521166 has 24 divisors (see below), whose sum is σ = 1067904864. Its totient is φ = 164054400.

The previous prime is 492521153. The next prime is 492521167. The reversal of 492521166 is 661125294.

492521166 is a `hidden beast` number, since 492 + 5 + 2 + 1 + 166 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 492521166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492521167) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17566 + ... + 35966.

It is an arithmetic number, because the mean of its divisors is an integer number (44496036).

Almost surely, 2^492521166 is an apocalyptic number.

492521166 is an abundant number, since it is smaller than the sum of its proper divisors (575383698).

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

492521166 is a wasteful number, since it uses less digits than its factorization.

492521166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19896 (or 19893 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 492521166 is about 22192.8178922822. The cubic root of 492521166 is about 789.7233267116.

The spelling of 492521166 in words is "four hundred ninety-two million, five hundred twenty-one thousand, one hundred sixty-six".