68665260 has 96 divisors (see below), whose sum is σ = 198862272. Its totient is φ = 17694720.

The previous prime is 68665237. The next prime is 68665271. The reversal of 68665260 is 6256686.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267052 + ... + 267308.

It is an arithmetic number, because the mean of its divisors is an integer number (2071482).

Almost surely, 2^68665260 is an apocalyptic number.

68665260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68665260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99431136).

68665260 is an abundant number, since it is smaller than the sum of its proper divisors (130197012).

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

68665260 is a wasteful number, since it uses less digits than its factorization.

68665260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 68665260 is about 8286.4503860217. The cubic root of 68665260 is about 409.4922526827.

The spelling of 68665260 in words is "sixty-eight million, six hundred sixty-five thousand, two hundred sixty".