3156564313321 has 8 divisors (see below), whose sum is σ = 3322978102080. Its totient is φ = 2990178407088.

The previous prime is 3156564313297. The next prime is 3156564313369. The reversal of 3156564313321 is 1233134656513.

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 3156564313321 - 2⁹ = 3156564312809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3156564310321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6738046 + ... + 7191271.

It is an arithmetic number, because the mean of its divisors is an integer number (415372262760).

Almost surely, 2^{3156564313321} is an apocalyptic number.

It is an amenable number.

3156564313321 is a deficient number, since it is larger than the sum of its proper divisors (166413788759).

3156564313321 is a wasteful number, since it uses less digits than its factorization.

3156564313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13941263.

The product of its digits is 583200, while the sum is 43.

Adding to 3156564313321 its reverse (1233134656513), we get a palindrome (4389698969834).

The spelling of 3156564313321 in words is "three trillion, one hundred fifty-six billion, five hundred sixty-four million, three hundred thirteen thousand, three hundred twenty-one".