315665566513 has 8 divisors (see below), whose sum is σ = 344445806016. Its totient is φ = 286899222000.

The previous prime is 315665566493. The next prime is 315665566543.

315665566513 is nontrivially palindromic in base 10.

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 315665566513 - 2¹³ = 315665558321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315665566543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3426213 + ... + 3517138.

It is an arithmetic number, because the mean of its divisors is an integer number (43055725752).

Almost surely, 2^315665566513 is an apocalyptic number.

It is an amenable number.

315665566513 is a deficient number, since it is larger than the sum of its proper divisors (28780239503).

315665566513 is a wasteful number, since it uses less digits than its factorization.

315665566513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6947495.

The product of its digits is 7290000, while the sum is 52.

The spelling of 315665566513 in words is "three hundred fifteen billion, six hundred sixty-five million, five hundred sixty-six thousand, five hundred thirteen".