316253310340661 has 4 divisors (see below), whose sum is σ = 316357306828524. Its totient is φ = 316149313852800.

The previous prime is 316253310340577. The next prime is 316253310340753. The reversal of 316253310340661 is 166043013352613.

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 310752906394225 + 5500403946436 = 17628185^2 + 2345294^2 .

It is a cyclic number.

It is not a de Polignac number, because 316253310340661 - 2²⁶ = 316253243231797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316253300340661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51998239370 + ... + 51998245451.

It is an arithmetic number, because the mean of its divisors is an integer number (79089326707131).

Almost surely, 2^{316253310340661} is an apocalyptic number.

It is an amenable number.

316253310340661 is a deficient number, since it is larger than the sum of its proper divisors (103996487863).

316253310340661 is a wasteful number, since it uses less digits than its factorization.

316253310340661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103996487862.

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 316253310340661 in words is "three hundred sixteen trillion, two hundred fifty-three billion, three hundred ten million, three hundred forty thousand, six hundred sixty-one".