315217660 has 12 divisors (see below), whose sum is σ = 661957128. Its totient is φ = 126087056.

The previous prime is 315217633. The next prime is 315217687. The reversal of 315217660 is 66712513.

It is an interprime number because it is at equal distance from previous prime (315217633) and next prime (315217687).

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 3 ways as a sum of consecutive naturals, for example, 7880422 + ... + 7880461.

It is an arithmetic number, because the mean of its divisors is an integer number (55163094).

Almost surely, 2^315217660 is an apocalyptic number.

It is an amenable number.

315217660 is an abundant number, since it is smaller than the sum of its proper divisors (346739468).

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

315217660 is a wasteful number, since it uses less digits than its factorization.

315217660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15760892 (or 15760890 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 315217660 is about 17754.3701662436. The cubic root of 315217660 is about 680.5658928345.

The spelling of 315217660 in words is "three hundred fifteen million, two hundred seventeen thousand, six hundred sixty".