315516564525241 has 4 divisors (see below), whose sum is σ = 315772873677184. Its totient is φ = 315260255373300.

The previous prime is 315516564525181. The next prime is 315516564525311. The reversal of 315516564525241 is 142525465615513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315516564525241 - 2¹⁷ = 315516564394169 is a prime.

It is a super-2 number, since 2×315516564525241² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315516564525341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128154574125 + ... + 128154576586.

It is an arithmetic number, because the mean of its divisors is an integer number (78943218419296).

Almost surely, 2^{315516564525241} is an apocalyptic number.

It is an amenable number.

315516564525241 is a deficient number, since it is larger than the sum of its proper divisors (256309151943).

315516564525241 is a wasteful number, since it uses less digits than its factorization.

315516564525241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256309151942.

The product of its digits is 21600000, while the sum is 55.

The spelling of 315516564525241 in words is "three hundred fifteen trillion, five hundred sixteen billion, five hundred sixty-four million, five hundred twenty-five thousand, two hundred forty-one".