80045347221 has 24 divisors (see below), whose sum is σ = 132183255360. Its totient is φ = 45724654656.

The previous prime is 80045347189. The next prime is 80045347237. The reversal of 80045347221 is 12274354008.

It is a happy number.

It is not a de Polignac number, because 80045347221 - 2⁵ = 80045347189 is a prime.

It is a super-2 number, since 2×80045347221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80045347241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27736 + ... + 401073.

It is an arithmetic number, because the mean of its divisors is an integer number (5507635640).

Almost surely, 2^80045347221 is an apocalyptic number.

It is an amenable number.

80045347221 is a deficient number, since it is larger than the sum of its proper divisors (52137908139).

80045347221 is a wasteful number, since it uses less digits than its factorization.

80045347221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431785 (or 431782 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 80045347221 in words is "eighty billion, forty-five million, three hundred forty-seven thousand, two hundred twenty-one".