20260446566693 has 2 divisors, whose sum is σ = 20260446566694. Its totient is φ = 20260446566692.

The previous prime is 20260446566681. The next prime is 20260446566747. The reversal of 20260446566693 is 39666564406202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10959026235364 + 9301420331329 = 3310442^2 + 3049823^2 .

It is a cyclic number.

It is not a de Polignac number, because 20260446566693 - 2¹⁶ = 20260446501157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20260446562693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10130223283346 + 10130223283347.

It is an arithmetic number, because the mean of its divisors is an integer number (10130223283347).

Almost surely, 2^{20260446566693} is an apocalyptic number.

It is an amenable number.

20260446566693 is a deficient number, since it is larger than the sum of its proper divisors (1).

20260446566693 is an equidigital number, since it uses as much as digits as its factorization.

20260446566693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67184640, while the sum is 59.

The spelling of 20260446566693 in words is "twenty trillion, two hundred sixty billion, four hundred forty-six million, five hundred sixty-six thousand, six hundred ninety-three".