23516315415457 has 2 divisors, whose sum is σ = 23516315415458. Its totient is φ = 23516315415456.

The previous prime is 23516315415421. The next prime is 23516315415493. The reversal of 23516315415457 is 75451451361532.

It is a balanced prime because it is at equal distance from previous prime (23516315415421) and next prime (23516315415493).

It can be written as a sum of positive squares in only one way, i.e., 20658697593856 + 2857617821601 = 4545184^2 + 1690449^2 .

It is a cyclic number.

It is not a de Polignac number, because 23516315415457 - 2¹⁵ = 23516315382689 is a prime.

It is not a weakly prime, because it can be changed into another prime (23516315415407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11758157707728 + 11758157707729.

It is an arithmetic number, because the mean of its divisors is an integer number (11758157707729).

Almost surely, 2^{23516315415457} is an apocalyptic number.

It is an amenable number.

23516315415457 is a deficient number, since it is larger than the sum of its proper divisors (1).

23516315415457 is an equidigital number, since it uses as much as digits as its factorization.

23516315415457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560000, while the sum is 52.

Adding to 23516315415457 its reverse (75451451361532), we get a palindrome (98967766776989).

The spelling of 23516315415457 in words is "twenty-three trillion, five hundred sixteen billion, three hundred fifteen million, four hundred fifteen thousand, four hundred fifty-seven".