66268760 has 16 divisors (see below), whose sum is σ = 149104800. Its totient is φ = 26507488.

The previous prime is 66268759. The next prime is 66268781. The reversal of 66268760 is 6786266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828320 + ... + 828399.

It is an arithmetic number, because the mean of its divisors is an integer number (9319050).

Almost surely, 2^66268760 is an apocalyptic number.

It is an amenable number.

66268760 is an abundant number, since it is smaller than the sum of its proper divisors (82836040).

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

66268760 is a wasteful number, since it uses less digits than its factorization.

66268760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656730 (or 1656726 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 66268760 is about 8140.5626341181. The cubic root of 66268760 is about 404.6718064655.

The spelling of 66268760 in words is "sixty-six million, two hundred sixty-eight thousand, seven hundred sixty".