80559570694 has 4 divisors (see below), whose sum is σ = 120839356044. Its totient is φ = 40279785346.

The previous prime is 80559570673. The next prime is 80559570697. The reversal of 80559570694 is 49607595508.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80559570697) 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 as a sum of consecutive naturals, namely, 20139892672 + ... + 20139892675.

It is an arithmetic number, because the mean of its divisors is an integer number (30209839011).

Almost surely, 2^80559570694 is an apocalyptic number.

80559570694 is a deficient number, since it is larger than the sum of its proper divisors (40279785350).

80559570694 is a wasteful number, since it uses less digits than its factorization.

80559570694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40279785349.

The product of its (nonzero) digits is 13608000, while the sum is 58.

The spelling of 80559570694 in words is "eighty billion, five hundred fifty-nine million, five hundred seventy thousand, six hundred ninety-four".