660675379 has 24 divisors (see below), whose sum is σ = 854383488. Its totient is φ = 505854720.

The previous prime is 660675371. The next prime is 660675397. The reversal of 660675379 is 973576066.

660675379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 660675379 - 2³ = 660675371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (660675371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3019 + ... + 36475.

It is an arithmetic number, because the mean of its divisors is an integer number (35599312).

Almost surely, 2^660675379 is an apocalyptic number.

660675379 is a deficient number, since it is larger than the sum of its proper divisors (193708109).

660675379 is a wasteful number, since it uses less digits than its factorization.

660675379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33515 (or 33508 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 49.

The square root of 660675379 is about 25703.6063423015. The cubic root of 660675379 is about 870.9556500200.

The spelling of 660675379 in words is "six hundred sixty million, six hundred seventy-five thousand, three hundred seventy-nine".