66859364 has 48 divisors (see below), whose sum is σ = 138438720. Its totient is φ = 27853440.

The previous prime is 66859363. The next prime is 66859369. The reversal of 66859364 is 46395866.

It is not an unprimeable number, because it can be changed into a prime (66859363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102062 + ... + 102714.

It is an arithmetic number, because the mean of its divisors is an integer number (2884140).

Almost surely, 2^66859364 is an apocalyptic number.

It is an amenable number.

66859364 is an abundant number, since it is smaller than the sum of its proper divisors (71579356).

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

66859364 is a wasteful number, since it uses less digits than its factorization.

66859364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 858 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 66859364 is about 8176.7575480749. The cubic root of 66859364 is about 405.8704319334.

The spelling of 66859364 in words is "sixty-six million, eight hundred fifty-nine thousand, three hundred sixty-four".