260005334440 has 16 divisors (see below), whose sum is σ = 585012002580. Its totient is φ = 104002133760.

The previous prime is 260005334389. The next prime is 260005334441. The reversal of 260005334440 is 44433500062.

It can be written as a sum of positive squares in 2 ways, for example, as 260004128836 + 1205604 = 509906^2 + 1098^2 .

It is a super-2 number, since 2×260005334440² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (260005334441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3250066641 + ... + 3250066720.

Almost surely, 2^260005334440 is an apocalyptic number.

260005334440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260005334440 is an abundant number, since it is smaller than the sum of its proper divisors (325006668140).

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

260005334440 is a wasteful number, since it uses less digits than its factorization.

260005334440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500133372 (or 6500133368 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

The spelling of 260005334440 in words is "two hundred sixty billion, five million, three hundred thirty-four thousand, four hundred forty".