260391300880 has 20 divisors (see below), whose sum is σ = 605409774732. Its totient is φ = 104156520320.

The previous prime is 260391300877. The next prime is 260391300893. The reversal of 260391300880 is 88003193062.

It can be written as a sum of positive squares in 2 ways, for example, as 201091258624 + 59300042256 = 448432^2 + 243516^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 1627445551 + ... + 1627445710.

Almost surely, 2^260391300880 is an apocalyptic number.

260391300880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260391300880 is an abundant number, since it is smaller than the sum of its proper divisors (345018473852).

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

260391300880 is a wasteful number, since it uses less digits than its factorization.

260391300880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254891274 (or 3254891268 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 260391300880 in words is "two hundred sixty billion, three hundred ninety-one million, three hundred thousand, eight hundred eighty".