66159170 has 96 divisors (see below), whose sum is σ = 153062784. Its totient is φ = 20148480.

The previous prime is 66159169. The next prime is 66159187. The reversal of 66159170 is 7195166.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 66159170.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 618257 + ... + 618363.

It is an arithmetic number, because the mean of its divisors is an integer number (1594404).

Almost surely, 2^66159170 is an apocalyptic number.

66159170 is an abundant number, since it is smaller than the sum of its proper divisors (86903614).

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

66159170 is a wasteful number, since it uses less digits than its factorization.

66159170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 66159170 is about 8133.8287417427. The cubic root of 66159170 is about 404.4486120465.

The spelling of 66159170 in words is "sixty-six million, one hundred fifty-nine thousand, one hundred seventy".