20116752977417 has 2 divisors, whose sum is σ = 20116752977418. Its totient is φ = 20116752977416.

The previous prime is 20116752977371. The next prime is 20116752977467. The reversal of 20116752977417 is 71477925761102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13013760436681 + 7102992540736 = 3607459^2 + 2665144^2 .

It is a cyclic number.

It is not a de Polignac number, because 20116752977417 - 2⁸ = 20116752977161 is a prime.

It is not a weakly prime, because it can be changed into another prime (20116752977467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058376488708 + 10058376488709.

It is an arithmetic number, because the mean of its divisors is an integer number (10058376488709).

Almost surely, 2^{20116752977417} is an apocalyptic number.

It is an amenable number.

20116752977417 is a deficient number, since it is larger than the sum of its proper divisors (1).

20116752977417 is an equidigital number, since it uses as much as digits as its factorization.

20116752977417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10372320, while the sum is 59.

The spelling of 20116752977417 in words is "twenty trillion, one hundred sixteen billion, seven hundred fifty-two million, nine hundred seventy-seven thousand, four hundred seventeen".