6581034504261 has 12 divisors (see below), whose sum is σ = 10863929975392. Its totient is φ = 3760591145256.

The previous prime is 6581034504259. The next prime is 6581034504337. The reversal of 6581034504261 is 1624054301856.

6581034504261 is a `hidden beast` number, since 6 + 5 + 81 + 0 + 3 + 4 + 504 + 2 + 61 = 666.

It is not a de Polignac number, because 6581034504261 - 2¹ = 6581034504259 is a prime.

It is a super-2 number, since 2×6581034504261² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6581034504211) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 52230432511 + ... + 52230432636.

Almost surely, 2^{6581034504261} is an apocalyptic number.

It is an amenable number.

6581034504261 is a deficient number, since it is larger than the sum of its proper divisors (4282895471131).

6581034504261 is a wasteful number, since it uses less digits than its factorization.

6581034504261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104460865160 (or 104460865157 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 6581034504261 in words is "six trillion, five hundred eighty-one billion, thirty-four million, five hundred four thousand, two hundred sixty-one".