260648091 has 32 divisors (see below), whose sum is σ = 432652800. Its totient is φ = 153692640.

The previous prime is 260648083. The next prime is 260648119. The reversal of 260648091 is 190846062.

260648091 is a `hidden beast` number, since 2 + 6 + 0 + 648 + 0 + 9 + 1 = 666.

It is not a de Polignac number, because 260648091 - 2³ = 260648083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260648191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 871 + ... + 22848.

It is an arithmetic number, because the mean of its divisors is an integer number (13520400).

Almost surely, 2^260648091 is an apocalyptic number.

260648091 is a deficient number, since it is larger than the sum of its proper divisors (172004709).

260648091 is a wasteful number, since it uses less digits than its factorization.

260648091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23776 (or 23770 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 260648091 is about 16144.5994375828. The cubic root of 260648091 is about 638.7803031466.

The spelling of 260648091 in words is "two hundred sixty million, six hundred forty-eight thousand, ninety-one".