315520066664353 has 2 divisors, whose sum is σ = 315520066664354. Its totient is φ = 315520066664352.

The previous prime is 315520066664339. The next prime is 315520066664431. The reversal of 315520066664353 is 353466660025513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255662735154849 + 59857331509504 = 15989457^2 + 7736752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315520066664353 is a prime.

It is a super-3 number, since 3×315520066664353³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 315520066664294 and 315520066664303.

It is not a weakly prime, because it can be changed into another prime (315520066664653) 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 as a sum of consecutive naturals, namely, 157760033332176 + 157760033332177.

It is an arithmetic number, because the mean of its divisors is an integer number (157760033332177).

Almost surely, 2^{315520066664353} is an apocalyptic number.

It is an amenable number.

315520066664353 is a deficient number, since it is larger than the sum of its proper divisors (1).

315520066664353 is an equidigital number, since it uses as much as digits as its factorization.

315520066664353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992000, while the sum is 55.

The spelling of 315520066664353 in words is "three hundred fifteen trillion, five hundred twenty billion, sixty-six million, six hundred sixty-four thousand, three hundred fifty-three".