20116115625313 has 4 divisors (see below), whose sum is σ = 20495664976788. Its totient is φ = 19736566273840.

The previous prime is 20116115625299. The next prime is 20116115625323. The reversal of 20116115625313 is 31352651161102.

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 6548849501184 + 13567266124129 = 2559072^2 + 3683377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20116115625313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20116115625323) 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, 189774675658 + ... + 189774675763.

It is an arithmetic number, because the mean of its divisors is an integer number (5123916244197).

Almost surely, 2^{20116115625313} is an apocalyptic number.

It is an amenable number.

20116115625313 is a deficient number, since it is larger than the sum of its proper divisors (379549351475).

20116115625313 is an equidigital number, since it uses as much as digits as its factorization.

20116115625313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379549351474.

The product of its (nonzero) digits is 32400, while the sum is 37.

Adding to 20116115625313 its reverse (31352651161102), we get a palindrome (51468766786415).

The spelling of 20116115625313 in words is "twenty trillion, one hundred sixteen billion, one hundred fifteen million, six hundred twenty-five thousand, three hundred thirteen".