166635486 has 12 divisors (see below), whose sum is σ = 361043592. Its totient is φ = 55545156.

The previous prime is 166635481. The next prime is 166635493. The reversal of 166635486 is 684536661.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166635481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4628746 + ... + 4628781.

It is an arithmetic number, because the mean of its divisors is an integer number (30086966).

Almost surely, 2^166635486 is an apocalyptic number.

166635486 is an abundant number, since it is smaller than the sum of its proper divisors (194408106).

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

166635486 is a wasteful number, since it uses less digits than its factorization.

166635486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9257535 (or 9257532 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 166635486 is about 12908.7368088438. The cubic root of 166635486 is about 550.2868872444.

The spelling of 166635486 in words is "one hundred sixty-six million, six hundred thirty-five thousand, four hundred eighty-six".