316253461302565 has 4 divisors (see below), whose sum is σ = 379504153563084. Its totient is φ = 253002769042048.

The previous prime is 316253461302511. The next prime is 316253461302599. The reversal of 316253461302565 is 565203164352613.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 231007868317249 + 85245592985316 = 15198943^2 + 9232854^2 .

It is a cyclic number.

It is not a de Polignac number, because 316253461302565 - 2²¹ = 316253459205413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31625346130252 + ... + 31625346130261.

It is an arithmetic number, because the mean of its divisors is an integer number (94876038390771).

Almost surely, 2^{316253461302565} is an apocalyptic number.

It is an amenable number.

316253461302565 is a deficient number, since it is larger than the sum of its proper divisors (63250692260519).

316253461302565 is an equidigital number, since it uses as much as digits as its factorization.

316253461302565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63250692260518.

The product of its (nonzero) digits is 11664000, while the sum is 52.

The spelling of 316253461302565 in words is "three hundred sixteen trillion, two hundred fifty-three billion, four hundred sixty-one million, three hundred two thousand, five hundred sixty-five".