80434663221 has 16 divisors (see below), whose sum is σ = 117007787520. Its totient is φ = 48743316720.

The previous prime is 80434663097. The next prime is 80434663237. The reversal of 80434663221 is 12236643408.

It is not a de Polignac number, because 80434663221 - 2¹⁰ = 80434662197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80434663221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80434663271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219040 + ... + 456998.

It is an arithmetic number, because the mean of its divisors is an integer number (7312986720).

Almost surely, 2^80434663221 is an apocalyptic number.

It is an amenable number.

80434663221 is a deficient number, since it is larger than the sum of its proper divisors (36573124299).

80434663221 is a wasteful number, since it uses less digits than its factorization.

80434663221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248216.

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 80434663221 in words is "eighty billion, four hundred thirty-four million, six hundred sixty-three thousand, two hundred twenty-one".