6591964615497 has 32 divisors (see below), whose sum is σ = 10341846524160. Its totient is φ = 4135530712320.

The previous prime is 6591964615477. The next prime is 6591964615507. The reversal of 6591964615497 is 7945164691956.

6591964615497 is a `hidden beast` number, since 6 + 5 + 9 + 1 + 96 + 46 + 1 + 5 + 497 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-6591964615497 is a prime.

It is a super-2 number, since 2×6591964615497² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6591964615477) 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, 2108703 + ... + 4198875.

It is an arithmetic number, because the mean of its divisors is an integer number (323182703880).

Almost surely, 2^{6591964615497} is an apocalyptic number.

It is an amenable number.

6591964615497 is a deficient number, since it is larger than the sum of its proper divisors (3749881908663).

6591964615497 is a wasteful number, since it uses less digits than its factorization.

6591964615497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097070 (or 2097064 counting only the distinct ones).

The product of its digits is 440899200, while the sum is 72.

The spelling of 6591964615497 in words is "six trillion, five hundred ninety-one billion, nine hundred sixty-four million, six hundred fifteen thousand, four hundred ninety-seven".