581151980231999 has 16 divisors (see below), whose sum is σ = 647621063285760. Its totient is φ = 516960885766560.

The previous prime is 581151980231989. The next prime is 581151980232001. The reversal of 581151980231999 is 999132089151185.

It is a cyclic number.

It is not a de Polignac number, because 581151980231999 - 2¹⁶ = 581151980166463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581151980231959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126264779 + ... + 130786460.

It is an arithmetic number, because the mean of its divisors is an integer number (40476316455360).

Almost surely, 2^{581151980231999} is an apocalyptic number.

581151980231999 is a deficient number, since it is larger than the sum of its proper divisors (66469083053761).

581151980231999 is a wasteful number, since it uses less digits than its factorization.

581151980231999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257055670.

The product of its (nonzero) digits is 62985600, while the sum is 71.

The spelling of 581151980231999 in words is "five hundred eighty-one trillion, one hundred fifty-one billion, nine hundred eighty million, two hundred thirty-one thousand, nine hundred ninety-nine".