66395260 has 12 divisors (see below), whose sum is σ = 139430088. Its totient is φ = 26558096.

The previous prime is 66395257. The next prime is 66395299. The reversal of 66395260 is 6259366.

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, 1659862 + ... + 1659901.

It is an arithmetic number, because the mean of its divisors is an integer number (11619174).

Almost surely, 2^66395260 is an apocalyptic number.

It is an amenable number.

66395260 is an abundant number, since it is smaller than the sum of its proper divisors (73034828).

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

66395260 is a wasteful number, since it uses less digits than its factorization.

66395260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319772 (or 3319770 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 66395260 is about 8148.3286629836. The cubic root of 66395260 is about 404.9291345806.

The spelling of 66395260 in words is "sixty-six million, three hundred ninety-five thousand, two hundred sixty".