166370864 has 20 divisors (see below), whose sum is σ = 351647880. Its totient is φ = 75623040.

The previous prime is 166370863. The next prime is 166370873. The reversal of 166370864 is 468073661.

166370864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (166370863) 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, 472469 + ... + 472820.

It is an arithmetic number, because the mean of its divisors is an integer number (17582394).

Almost surely, 2^166370864 is an apocalyptic number.

It is an amenable number.

166370864 is an abundant number, since it is smaller than the sum of its proper divisors (185277016).

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

166370864 is a wasteful number, since it uses less digits than its factorization.

166370864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945308 (or 945302 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 166370864 is about 12898.4830115793. The cubic root of 166370864 is about 549.9954423865.

It can be divided in two parts, 1663 and 70864, that added together give a palindrome (72527).

The spelling of 166370864 in words is "one hundred sixty-six million, three hundred seventy thousand, eight hundred sixty-four".