66859160 has 32 divisors (see below), whose sum is σ = 156975840. Its totient is φ = 25580544.

The previous prime is 66859153. The next prime is 66859187. The reversal of 66859160 is 6195866.

66859160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35417 + ... + 37256.

It is an arithmetic number, because the mean of its divisors is an integer number (4905495).

Almost surely, 2^66859160 is an apocalyptic number.

It is an amenable number.

66859160 is an abundant number, since it is smaller than the sum of its proper divisors (90116680).

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

66859160 is a wasteful number, since it uses less digits than its factorization.

66859160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72707 (or 72703 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 66859160 is about 8176.7450736830. The cubic root of 66859160 is about 405.8700191383.

The spelling of 66859160 in words is "sixty-six million, eight hundred fifty-nine thousand, one hundred sixty".