166441770 has 64 divisors (see below), whose sum is σ = 484202880. Its totient is φ = 40348800.

The previous prime is 166441763. The next prime is 166441787. The reversal of 166441770 is 77144661.

166441770 is a `hidden beast` number, since 1 + 6 + 644 + 1 + 7 + 7 + 0 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25051 + ... + 30990.

It is an arithmetic number, because the mean of its divisors is an integer number (7565670).

Almost surely, 2^166441770 is an apocalyptic number.

166441770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166441770 is an abundant number, since it is smaller than the sum of its proper divisors (317761110).

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

166441770 is a wasteful number, since it uses less digits than its factorization.

166441770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56068 (or 56062 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 166441770 is about 12901.2313365818. The cubic root of 166441770 is about 550.0735659172.

It can be divided in two parts, 1664 and 41770, that added together give a palindrome (43434).

The spelling of 166441770 in words is "one hundred sixty-six million, four hundred forty-one thousand, seven hundred seventy".