80559531672 has 16 divisors (see below), whose sum is σ = 201398829240. Its totient is φ = 26853177216.

The previous prime is 80559531641. The next prime is 80559531673. The reversal of 80559531672 is 27613595508.

It is a happy number.

It is a super-2 number, since 2×80559531672² (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 (80559531673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678323553 + ... + 1678323600.

Almost surely, 2^80559531672 is an apocalyptic number.

It is an amenable number.

80559531672 is an abundant number, since it is smaller than the sum of its proper divisors (120839297568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80559531672 is a wasteful number, since it uses less digits than its factorization.

80559531672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356647162 (or 3356647158 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 80559531672 in words is "eighty billion, five hundred fifty-nine million, five hundred thirty-one thousand, six hundred seventy-two".