660502068 has 48 divisors (see below), whose sum is σ = 1561781760. Its totient is φ = 217240704.

The previous prime is 660502061. The next prime is 660502069. The reversal of 660502068 is 860205066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660502061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361405 + ... + 363227.

It is an arithmetic number, because the mean of its divisors is an integer number (32537120).

Almost surely, 2^660502068 is an apocalyptic number.

It is an amenable number.

660502068 is an abundant number, since it is smaller than the sum of its proper divisors (901279692).

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

660502068 is a wasteful number, since it uses less digits than its factorization.

660502068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 660502068 is about 25700.2347849198. The cubic root of 660502068 is about 870.8794858400.

The spelling of 660502068 in words is "six hundred sixty million, five hundred two thousand, sixty-eight".