66030860 has 24 divisors (see below), whose sum is σ = 158474400. Its totient is φ = 22639104.

The previous prime is 66030857. The next prime is 66030893. The reversal of 66030860 is 6803066.

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, 235685 + ... + 235964.

It is an arithmetic number, because the mean of its divisors is an integer number (6603100).

Almost surely, 2^66030860 is an apocalyptic number.

It is an amenable number.

66030860 is an abundant number, since it is smaller than the sum of its proper divisors (92443540).

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

66030860 is a wasteful number, since it uses less digits than its factorization.

66030860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471665 (or 471663 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 66030860 is about 8125.9374843768. The cubic root of 66030860 is about 404.1869784433.

The spelling of 66030860 in words is "sixty-six million, thirty thousand, eight hundred sixty".