8161883847513 has 12 divisors (see below), whose sum is σ = 12861150305328. Its totient is φ = 4946596271160.

The previous prime is 8161883847511. The next prime is 8161883847517. The reversal of 8161883847513 is 3157483881618.

8161883847513 is a `hidden beast` number, since 8 + 1 + 6 + 1 + 88 + 38 + 4 + 7 + 513 = 666.

It is not a de Polignac number, because 8161883847513 - 2¹ = 8161883847511 is a prime.

It is a super-2 number, since 2×8161883847513² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8161883847511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41221635495 + ... + 41221635692.

It is an arithmetic number, because the mean of its divisors is an integer number (1071762525444).

Almost surely, 2^{8161883847513} is an apocalyptic number.

It is an amenable number.

8161883847513 is a deficient number, since it is larger than the sum of its proper divisors (4699266457815).

8161883847513 is a wasteful number, since it uses less digits than its factorization.

8161883847513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82443271204 (or 82443271201 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 8161883847513 in words is "eight trillion, one hundred sixty-one billion, eight hundred eighty-three million, eight hundred forty-seven thousand, five hundred thirteen".