20017506310969 has 2 divisors, whose sum is σ = 20017506310970. Its totient is φ = 20017506310968.

The previous prime is 20017506310957. The next prime is 20017506310979. The reversal of 20017506310969 is 96901360571002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17927501191744 + 2090005119225 = 4234088^2 + 1445685^2 .

It is a cyclic number.

It is not a de Polignac number, because 20017506310969 - 2⁵ = 20017506310937 is a prime.

It is a super-2 number, since 2×20017506310969² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20017506310979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10008753155484 + 10008753155485.

It is an arithmetic number, because the mean of its divisors is an integer number (10008753155485).

Almost surely, 2^{20017506310969} is an apocalyptic number.

It is an amenable number.

20017506310969 is a deficient number, since it is larger than the sum of its proper divisors (1).

20017506310969 is an equidigital number, since it uses as much as digits as its factorization.

20017506310969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 20017506310969 in words is "twenty trillion, seventeen billion, five hundred six million, three hundred ten thousand, nine hundred sixty-nine".