260655615 has 48 divisors (see below), whose sum is σ = 494915616. Its totient is φ = 125856000.

The previous prime is 260655601. The next prime is 260655641. The reversal of 260655615 is 516556062.

It is a happy number.

It is not a de Polignac number, because 260655615 - 2⁷ = 260655487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260655615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136165 + ... + 138065.

It is an arithmetic number, because the mean of its divisors is an integer number (10310742).

Almost surely, 2^260655615 is an apocalyptic number.

260655615 is a deficient number, since it is larger than the sum of its proper divisors (234260001).

260655615 is a wasteful number, since it uses less digits than its factorization.

260655615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 260655615 is about 16144.8324549993. The cubic root of 260655615 is about 638.7864495395.

The spelling of 260655615 in words is "two hundred sixty million, six hundred fifty-five thousand, six hundred fifteen".