80671220432 has 40 divisors (see below), whose sum is σ = 170536412352. Its totient is φ = 36662976000.

The previous prime is 80671220429. The next prime is 80671220437. The reversal of 80671220432 is 23402217608.

It is a junction number, because it is equal to n+sod(n) for n = 80671220392 and 80671220401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80671220437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209557 + ... + 1274507.

Almost surely, 2^80671220432 is an apocalyptic number.

It is an amenable number.

80671220432 is an abundant number, since it is smaller than the sum of its proper divisors (89865191920).

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

80671220432 is a wasteful number, since it uses less digits than its factorization.

80671220432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72027 (or 72021 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

It can be divided in two parts, 80671 and 220432, that added together give a palindrome (301103).

The spelling of 80671220432 in words is "eighty billion, six hundred seventy-one million, two hundred twenty thousand, four hundred thirty-two".