166089468 has 24 divisors (see below), whose sum is σ = 388668672. Its totient is φ = 55202224.

The previous prime is 166089433. The next prime is 166089479. The reversal of 166089468 is 864980661.

It is a super-2 number, since 2×166089468² = 55171422761046048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15780 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (16194528).

Almost surely, 2^166089468 is an apocalyptic number.

It is an amenable number.

166089468 is an abundant number, since it is smaller than the sum of its proper divisors (222579204).

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

166089468 is a wasteful number, since it uses less digits than its factorization.

166089468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40241 (or 40239 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 166089468 is about 12887.5702907879. The cubic root of 166089468 is about 549.6851840233.

The spelling of 166089468 in words is "one hundred sixty-six million, eighty-nine thousand, four hundred sixty-eight".