315516425046505 has 8 divisors (see below), whose sum is σ = 379136244453192. Its totient is φ = 252068783772288.

The previous prime is 315516425046463. The next prime is 315516425046521. The reversal of 315516425046505 is 505640524615513.

It can be written as a sum of positive squares in 4 ways, for example, as 66452886674496 + 249063538372009 = 8151864^2 + 15781747^2 .

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 315516425046505 - 2²¹ = 315516422949353 is a prime.

It is a super-2 number, since 2×315516425046505² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43044529084 + ... + 43044536413.

It is an arithmetic number, because the mean of its divisors is an integer number (47392030556649).

Almost surely, 2^{315516425046505} is an apocalyptic number.

It is an amenable number.

315516425046505 is a deficient number, since it is larger than the sum of its proper divisors (63619819406687).

315516425046505 is an equidigital number, since it uses as much as digits as its factorization.

315516425046505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86089066235.

The product of its (nonzero) digits is 10800000, while the sum is 52.

The spelling of 315516425046505 in words is "three hundred fifteen trillion, five hundred sixteen billion, four hundred twenty-five million, forty-six thousand, five hundred five".