166845888 has 168 divisors, whose sum is σ = 552754800. Its totient is φ = 47554560.

The previous prime is 166845881. The next prime is 166845893. The reversal of 166845888 is 888548661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166845881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106938 + ... + 108486.

Almost surely, 2^166845888 is an apocalyptic number.

166845888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166845888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276377400).

166845888 is an abundant number, since it is smaller than the sum of its proper divisors (385908912).

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

166845888 is a wasteful number, since it uses less digits than its factorization.

166845888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1582 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The square root of 166845888 is about 12916.8838347335. The cubic root of 166845888 is about 550.5183960868.

The spelling of 166845888 in words is "one hundred sixty-six million, eight hundred forty-five thousand, eight hundred eighty-eight".