80844335669 has 8 divisors (see below), whose sum is σ = 86772487320. Its totient is φ = 75046473216.

The previous prime is 80844335633. The next prime is 80844335681. The reversal of 80844335669 is 96653344808.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10042044100 + 70802291569 = 100210^2 + 266087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80844335669 - 2⁸ = 80844335413 is a prime.

It is a super-2 number, since 2×80844335669² (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 (80844335629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32571014 + ... + 32573495.

It is an arithmetic number, because the mean of its divisors is an integer number (10846560915).

Almost surely, 2^80844335669 is an apocalyptic number.

It is an amenable number.

80844335669 is a deficient number, since it is larger than the sum of its proper divisors (5928151651).

80844335669 is a wasteful number, since it uses less digits than its factorization.

80844335669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65144599.

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 80844335669 in words is "eighty billion, eight hundred forty-four million, three hundred thirty-five thousand, six hundred sixty-nine".