66313700 has 36 divisors (see below), whose sum is σ = 144490752. Its totient is φ = 26416800.

The previous prime is 66313693. The next prime is 66313717. The reversal of 66313700 is 731366.

It is a self number, because there is not a number n which added to its sum of digits gives 66313700.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25877 + ... + 28323.

It is an arithmetic number, because the mean of its divisors is an integer number (4013632).

Almost surely, 2^66313700 is an apocalyptic number.

It is an amenable number.

66313700 is an abundant number, since it is smaller than the sum of its proper divisors (78177052).

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

66313700 is a wasteful number, since it uses less digits than its factorization.

66313700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2725 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 66313700 is about 8143.3224177850. The cubic root of 66313700 is about 404.7632615322.

The spelling of 66313700 in words is "sixty-six million, three hundred thirteen thousand, seven hundred".