8115681065105 has 16 divisors (see below), whose sum is σ = 9946511527680. Its totient is φ = 6354095501952.

The previous prime is 8115681065057. The next prime is 8115681065123. The reversal of 8115681065105 is 5015601865118.

It is a cyclic number.

It is not a de Polignac number, because 8115681065105 - 2²² = 8115676870801 is a prime.

It is a super-2 number, since 2×8115681065105² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 8115681065105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4043261 + ... + 5707829.

It is an arithmetic number, because the mean of its divisors is an integer number (621656970480).

Almost surely, 2^{8115681065105} is an apocalyptic number.

It is an amenable number.

8115681065105 is a deficient number, since it is larger than the sum of its proper divisors (1830830462575).

8115681065105 is a wasteful number, since it uses less digits than its factorization.

8115681065105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685368.

The product of its (nonzero) digits is 288000, while the sum is 47.

The spelling of 8115681065105 in words is "eight trillion, one hundred fifteen billion, six hundred eighty-one million, sixty-five thousand, one hundred five".