10615566853817 has 2 divisors, whose sum is σ = 10615566853818. Its totient is φ = 10615566853816.

The previous prime is 10615566853763. The next prime is 10615566853831. The reversal of 10615566853817 is 71835866551601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8866941463081 + 1748625390736 = 2977741^2 + 1322356^2 .

It is an emirp because it is prime and its reverse (71835866551601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10615566853817 is a prime.

It is a super-2 number, since 2×10615566853817² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10615566853817.

It is not a weakly prime, because it can be changed into another prime (10615566853117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5307783426908 + 5307783426909.

It is an arithmetic number, because the mean of its divisors is an integer number (5307783426909).

Almost surely, 2^{10615566853817} is an apocalyptic number.

It is an amenable number.

10615566853817 is a deficient number, since it is larger than the sum of its proper divisors (1).

10615566853817 is an equidigital number, since it uses as much as digits as its factorization.

10615566853817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288000, while the sum is 62.

The spelling of 10615566853817 in words is "ten trillion, six hundred fifteen billion, five hundred sixty-six million, eight hundred fifty-three thousand, eight hundred seventeen".