3215316563345 has 8 divisors (see below), whose sum is σ = 3863821882920. Its totient is φ = 2568625246080.

The previous prime is 3215316563341. The next prime is 3215316563401. The reversal of 3215316563345 is 5433656135123.

It can be written as a sum of positive squares in 4 ways, for example, as 80263681 + 3215236299664 = 8959^2 + 1793108^2 .

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

It is not a de Polignac number, because 3215316563345 - 2² = 3215316563341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3215316563345.

It is not an unprimeable number, because it can be changed into a prime (3215316563341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453496676 + ... + 453503765.

It is an arithmetic number, because the mean of its divisors is an integer number (482977735365).

Almost surely, 2^{3215316563345} is an apocalyptic number.

It is an amenable number.

3215316563345 is a deficient number, since it is larger than the sum of its proper divisors (648505319575).

3215316563345 is an equidigital number, since it uses as much as digits as its factorization.

3215316563345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907001155.

The product of its digits is 2916000, while the sum is 47.

The spelling of 3215316563345 in words is "three trillion, two hundred fifteen billion, three hundred sixteen million, five hundred sixty-three thousand, three hundred forty-five".