166761888 has 24 divisors (see below), whose sum is σ = 437750208. Its totient is φ = 55587264.

The previous prime is 166761887. The next prime is 166761893. The reversal of 166761888 is 888167661.

166761888 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 166761888.

It is not an unprimeable number, because it can be changed into a prime (166761887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868456 + ... + 868647.

It is an arithmetic number, because the mean of its divisors is an integer number (18239592).

Almost surely, 2^166761888 is an apocalyptic number.

It is an amenable number.

166761888 is an abundant number, since it is smaller than the sum of its proper divisors (270988320).

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

166761888 is a wasteful number, since it uses less digits than its factorization.

166761888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737116 (or 1737108 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The square root of 166761888 is about 12913.6318671395. The cubic root of 166761888 is about 550.4259928346.

The spelling of 166761888 in words is "one hundred sixty-six million, seven hundred sixty-one thousand, eight hundred eighty-eight".