6565241543091 has 48 divisors (see below), whose sum is σ = 11351047809024. Its totient is φ = 3300498432000.

The previous prime is 6565241543089. The next prime is 6565241543129. The reversal of 6565241543091 is 1903451425656.

It is not a de Polignac number, because 6565241543091 - 2¹ = 6565241543089 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6565241543491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41594190 + ... + 41751731.

It is an arithmetic number, because the mean of its divisors is an integer number (236480162688).

Almost surely, 2^{6565241543091} is an apocalyptic number.

6565241543091 is a deficient number, since it is larger than the sum of its proper divisors (4785806265933).

6565241543091 is a wasteful number, since it uses less digits than its factorization.

6565241543091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83345984 (or 83345973 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 6565241543091 in words is "six trillion, five hundred sixty-five billion, two hundred forty-one million, five hundred forty-three thousand, ninety-one".