660117366 has 24 divisors (see below), whose sum is σ = 1451604024. Its totient is φ = 216754560.

The previous prime is 660117331. The next prime is 660117373. The reversal of 660117366 is 663711066.

660117366 is a `hidden beast` number, since 6 + 601 + 17 + 36 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 660117366.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 272475 + ... + 274886.

It is an arithmetic number, because the mean of its divisors is an integer number (60483501).

Almost surely, 2^660117366 is an apocalyptic number.

660117366 is an abundant number, since it is smaller than the sum of its proper divisors (791486658).

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

660117366 is a wasteful number, since it uses less digits than its factorization.

660117366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547436 (or 547433 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 660117366 is about 25692.7492884666. The cubic root of 660117366 is about 870.7103750166.

The spelling of 660117366 in words is "six hundred sixty million, one hundred seventeen thousand, three hundred sixty-six".