164872660 has 12 divisors (see below), whose sum is σ = 346232628. Its totient is φ = 65949056.

The previous prime is 164872619. The next prime is 164872661. The reversal of 164872660 is 66278461.

164872660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50211396 + 114661264 = 7086^2 + 10708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164872661) 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, 4121797 + ... + 4121836.

It is an arithmetic number, because the mean of its divisors is an integer number (28852719).

Almost surely, 2^164872660 is an apocalyptic number.

164872660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164872660 is an abundant number, since it is smaller than the sum of its proper divisors (181359968).

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

164872660 is a wasteful number, since it uses less digits than its factorization.

164872660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8243642 (or 8243640 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 164872660 is about 12840.2749191752. The cubic root of 164872660 is about 548.3395208963.

The spelling of 164872660 in words is "one hundred sixty-four million, eight hundred seventy-two thousand, six hundred sixty".