20062455817 has 2 divisors, whose sum is σ = 20062455818. Its totient is φ = 20062455816.

The previous prime is 20062455793. The next prime is 20062455821. The reversal of 20062455817 is 71855426002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17138999056 + 2923456761 = 130916^2 + 54069^2 .

It is a cyclic number.

It is not a de Polignac number, because 20062455817 - 2⁷ = 20062455689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20062455817.

It is not a weakly prime, because it can be changed into another prime (20062450817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10031227908 + 10031227909.

It is an arithmetic number, because the mean of its divisors is an integer number (10031227909).

Almost surely, 2^20062455817 is an apocalyptic number.

It is an amenable number.

20062455817 is a deficient number, since it is larger than the sum of its proper divisors (1).

20062455817 is an equidigital number, since it uses as much as digits as its factorization.

20062455817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 20062455817 in words is "twenty billion, sixty-two million, four hundred fifty-five thousand, eight hundred seventeen".