260164880 has 20 divisors (see below), whose sum is σ = 604883532. Its totient is φ = 104065920.

The previous prime is 260164867. The next prime is 260164903. The reversal of 260164880 is 88461062.

It can be written as a sum of positive squares in 2 ways, for example, as 180741136 + 79423744 = 13444^2 + 8912^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 260164880.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625951 + ... + 1626110.

Almost surely, 2^260164880 is an apocalyptic number.

260164880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260164880 is an abundant number, since it is smaller than the sum of its proper divisors (344718652).

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

260164880 is a wasteful number, since it uses less digits than its factorization.

260164880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252074 (or 3252068 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 260164880 is about 16129.6273980523. The cubic root of 260164880 is about 638.3853176984.

The spelling of 260164880 in words is "two hundred sixty million, one hundred sixty-four thousand, eight hundred eighty".