80253981660591 has 16 divisors (see below), whose sum is σ = 125888598684000. Its totient is φ = 50355439473024.

The previous prime is 80253981660581. The next prime is 80253981660607. The reversal of 80253981660591 is 19506618935208.

80253981660591 is a `hidden beast` number, since 8 + 0 + 2 + 5 + 3 + 9 + 8 + 16 + 605 + 9 + 1 = 666.

It is not a de Polignac number, because 80253981660591 - 2³⁹ = 79704225846703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80253981660581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87422637516 + ... + 87422638433.

It is an arithmetic number, because the mean of its divisors is an integer number (7868037417750).

Almost surely, 2^{80253981660591} is an apocalyptic number.

80253981660591 is a deficient number, since it is larger than the sum of its proper divisors (45634617023409).

80253981660591 is a wasteful number, since it uses less digits than its factorization.

80253981660591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174845275975 (or 174845275969 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 80253981660591 in words is "eighty trillion, two hundred fifty-three billion, nine hundred eighty-one million, six hundred sixty thousand, five hundred ninety-one".