20116707665753 has 2 divisors, whose sum is σ = 20116707665754. Its totient is φ = 20116707665752.

The previous prime is 20116707665669. The next prime is 20116707665869. The reversal of 20116707665753 is 35756670761102.

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., 13503802261504 + 6612905404249 = 3674752^2 + 2571557^2 .

It is a cyclic number.

It is not a de Polignac number, because 20116707665753 - 2¹⁸ = 20116707403609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20116707665953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058353832876 + 10058353832877.

It is an arithmetic number, because the mean of its divisors is an integer number (10058353832877).

Almost surely, 2^{20116707665753} is an apocalyptic number.

It is an amenable number.

20116707665753 is a deficient number, since it is larger than the sum of its proper divisors (1).

20116707665753 is an equidigital number, since it uses as much as digits as its factorization.

20116707665753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11113200, while the sum is 56.

The spelling of 20116707665753 in words is "twenty trillion, one hundred sixteen billion, seven hundred seven million, six hundred sixty-five thousand, seven hundred fifty-three".