316145521165 has 8 divisors (see below), whose sum is σ = 389627993880. Its totient is φ = 246080837952.

The previous prime is 316145521157. The next prime is 316145521177. The reversal of 316145521165 is 561125541613.

It can be written as a sum of positive squares in 4 ways, for example, as 117498813961 + 198646707204 = 342781^2 + 445698^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 316145521165 - 2³ = 316145521157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854447170 + ... + 854447539.

It is an arithmetic number, because the mean of its divisors is an integer number (48703499235).

Almost surely, 2^316145521165 is an apocalyptic number.

It is an amenable number.

316145521165 is a deficient number, since it is larger than the sum of its proper divisors (73482472715).

316145521165 is a wasteful number, since it uses less digits than its factorization.

316145521165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708894751.

The product of its digits is 108000, while the sum is 40.

The spelling of 316145521165 in words is "three hundred sixteen billion, one hundred forty-five million, five hundred twenty-one thousand, one hundred sixty-five".