660460317 has 16 divisors (see below), whose sum is σ = 962108928. Its totient is φ = 399679280.

The previous prime is 660460313. The next prime is 660460327. The reversal of 660460317 is 713064066.

It is not a de Polignac number, because 660460317 - 2² = 660460313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660460313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7888 + ... + 37190.

It is an arithmetic number, because the mean of its divisors is an integer number (60131808).

Almost surely, 2^660460317 is an apocalyptic number.

It is an amenable number.

660460317 is a deficient number, since it is larger than the sum of its proper divisors (301648611).

660460317 is a wasteful number, since it uses less digits than its factorization.

660460317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30000.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 660460317 is about 25699.4225032393. The cubic root of 660460317 is about 870.8611357306.

The spelling of 660460317 in words is "six hundred sixty million, four hundred sixty thousand, three hundred seventeen".