966615999113 has 2 divisors, whose sum is σ = 966615999114. Its totient is φ = 966615999112.

The previous prime is 966615999103. The next prime is 966615999127. The reversal of 966615999113 is 311999516669.

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., 878188271689 + 88427727424 = 937117^2 + 297368^2 .

It is a cyclic number.

It is not a de Polignac number, because 966615999113 - 2²⁴ = 966599221897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 966615999113.

It is not a weakly prime, because it can be changed into another prime (966615999103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483307999556 + 483307999557.

It is an arithmetic number, because the mean of its divisors is an integer number (483307999557).

Almost surely, 2^966615999113 is an apocalyptic number.

It is an amenable number.

966615999113 is a deficient number, since it is larger than the sum of its proper divisors (1).

966615999113 is an equidigital number, since it uses as much as digits as its factorization.

966615999113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21257640, while the sum is 65.

The spelling of 966615999113 in words is "nine hundred sixty-six billion, six hundred fifteen million, nine hundred ninety-nine thousand, one hundred thirteen".