80571005380581 has 8 divisors (see below), whose sum is σ = 107434893205824. Its totient is φ = 53710560571200.

The previous prime is 80571005380499. The next prime is 80571005380601. The reversal of 80571005380581 is 18508350017508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80571005380581 - 2²¹ = 80571003283429 is a prime.

It is a super-2 number, since 2×80571005380581² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80571005380081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860699361 + ... + 860792966.

It is an arithmetic number, because the mean of its divisors is an integer number (13429361650728).

Almost surely, 2^{80571005380581} is an apocalyptic number.

It is an amenable number.

80571005380581 is a deficient number, since it is larger than the sum of its proper divisors (26863887825243).

80571005380581 is a wasteful number, since it uses less digits than its factorization.

80571005380581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721507931.

The product of its (nonzero) digits is 1344000, while the sum is 51.

The spelling of 80571005380581 in words is "eighty trillion, five hundred seventy-one billion, five million, three hundred eighty thousand, five hundred eighty-one".