966617239873 has 2 divisors, whose sum is σ = 966617239874. Its totient is φ = 966617239872.

The previous prime is 966617239853. The next prime is 966617239877. The reversal of 966617239873 is 378932716669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 565696528384 + 400920711489 = 752128^2 + 633183^2 .

It is a cyclic number.

It is not a de Polignac number, because 966617239873 - 2²¹ = 966615142721 is a prime.

It is a super-2 number, since 2×966617239873² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 966617239799 and 966617239808.

It is not a weakly prime, because it can be changed into another prime (966617239877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483308619936 + 483308619937.

It is an arithmetic number, because the mean of its divisors is an integer number (483308619937).

Almost surely, 2^966617239873 is an apocalyptic number.

It is an amenable number.

966617239873 is a deficient number, since it is larger than the sum of its proper divisors (1).

966617239873 is an equidigital number, since it uses as much as digits as its factorization.

966617239873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123451776, while the sum is 67.

The spelling of 966617239873 in words is "nine hundred sixty-six billion, six hundred seventeen million, two hundred thirty-nine thousand, eight hundred seventy-three".