6493679807161 has 32 divisors (see below), whose sum is σ = 6872112557856. Its totient is φ = 6127828992000.

The previous prime is 6493679807143. The next prime is 6493679807171. The reversal of 6493679807161 is 1617089763946.

It can be written as a sum of positive squares in 16 ways, for example, as 9623610000 + 6484056197161 = 98100^2 + 2546381^2 .

It is a cyclic number.

It is not a de Polignac number, because 6493679807161 - 2⁷ = 6493679807033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6493679807101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226554171 + ... + 226582831.

It is an arithmetic number, because the mean of its divisors is an integer number (214753517433).

Almost surely, 2^{6493679807161} is an apocalyptic number.

It is an amenable number.

6493679807161 is a deficient number, since it is larger than the sum of its proper divisors (378432750695).

6493679807161 is a wasteful number, since it uses less digits than its factorization.

6493679807161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29613.

The product of its (nonzero) digits is 82301184, while the sum is 67.

The spelling of 6493679807161 in words is "six trillion, four hundred ninety-three billion, six hundred seventy-nine million, eight hundred seven thousand, one hundred sixty-one".