260597661 has 16 divisors (see below), whose sum is σ = 355098816. Its totient is φ = 169934336.

The previous prime is 260597653. The next prime is 260597669. The reversal of 260597661 is 166795062.

It is an interprime number because it is at equal distance from previous prime (260597653) and next prime (260597669).

It is a cyclic number.

It is not a de Polignac number, because 260597661 - 2³ = 260597653 is a prime.

It is a super-2 number, since 2×260597661² = 135822281837341842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260597669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53806 + ... + 58448.

It is an arithmetic number, because the mean of its divisors is an integer number (22193676).

Almost surely, 2^260597661 is an apocalyptic number.

It is an amenable number.

260597661 is a deficient number, since it is larger than the sum of its proper divisors (94501155).

260597661 is a wasteful number, since it uses less digits than its factorization.

260597661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 260597661 is about 16143.0375394472. The cubic root of 260597661 is about 638.7391035757.

The spelling of 260597661 in words is "two hundred sixty million, five hundred ninety-seven thousand, six hundred sixty-one".