260617660 has 24 divisors (see below), whose sum is σ = 552943440. Its totient is φ = 103171584.

The previous prime is 260617657. The next prime is 260617717. The reversal of 260617660 is 66716062.

260617660 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

260617660 is strictly pandigital in base 9.

It is a congruent number.

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, 65230 + ... + 69109.

It is an arithmetic number, because the mean of its divisors is an integer number (23039310).

Almost surely, 2^260617660 is an apocalyptic number.

260617660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260617660 is an abundant number, since it is smaller than the sum of its proper divisors (292325780).

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

260617660 is a wasteful number, since it uses less digits than its factorization.

260617660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134445 (or 134443 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 260617660 is about 16143.6569586943. The cubic root of 260617660 is about 638.7554427049.

The spelling of 260617660 in words is "two hundred sixty million, six hundred seventeen thousand, six hundred sixty".