260011560 has 32 divisors (see below), whose sum is σ = 780035040. Its totient is φ = 69336384.

The previous prime is 260011541. The next prime is 260011571. The reversal of 260011560 is 65110062.

It is a happy number.

It is a super-2 number, since 2×260011560² = 135212022667267200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083262 + ... + 1083501.

It is an arithmetic number, because the mean of its divisors is an integer number (24376095).

Almost surely, 2^260011560 is an apocalyptic number.

260011560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260011560 is an abundant number, since it is smaller than the sum of its proper divisors (520023480).

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

260011560 is a wasteful number, since it uses less digits than its factorization.

260011560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166777 (or 2166773 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 260011560 is about 16124.8739529957. The cubic root of 260011560 is about 638.2598889445.

The spelling of 260011560 in words is "two hundred sixty million, eleven thousand, five hundred sixty".