9661109063 has 2 divisors, whose sum is σ = 9661109064. Its totient is φ = 9661109062.

The previous prime is 9661109041. The next prime is 9661109069. The reversal of 9661109063 is 3609011669.

It is a strong prime.

It is an emirp because it is prime and its reverse (3609011669) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9661109063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9661109063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9661109069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4830554531 + 4830554532.

It is an arithmetic number, because the mean of its divisors is an integer number (4830554532).

Almost surely, 2^9661109063 is an apocalyptic number.

9661109063 is a deficient number, since it is larger than the sum of its proper divisors (1).

9661109063 is an equidigital number, since it uses as much as digits as its factorization.

9661109063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 9661109063 is about 98290.9408999629. The cubic root of 9661109063 is about 2129.8171915816.

The spelling of 9661109063 in words is "nine billion, six hundred sixty-one million, one hundred nine thousand, sixty-three".