660160812 has 48 divisors (see below), whose sum is σ = 1609800192. Its totient is φ = 210165120.

The previous prime is 660160801. The next prime is 660160817. The reversal of 660160812 is 218061066.

It is a self number, because there is not a number n which added to its sum of digits gives 660160812.

It is not an unprimeable number, because it can be changed into a prime (660160817) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 235137 + ... + 237927.

It is an arithmetic number, because the mean of its divisors is an integer number (33537504).

Almost surely, 2^660160812 is an apocalyptic number.

It is an amenable number.

660160812 is an abundant number, since it is smaller than the sum of its proper divisors (949639380).

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

660160812 is a wasteful number, since it uses less digits than its factorization.

660160812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678 (or 3676 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 660160812 is about 25693.5947660112. The cubic root of 660160812 is about 870.7294766971.

The spelling of 660160812 in words is "six hundred sixty million, one hundred sixty thousand, eight hundred twelve".