80164438688 has 12 divisors (see below), whose sum is σ = 157823738730. Its totient is φ = 40082219328.

The previous prime is 80164438633. The next prime is 80164438699. The reversal of 80164438688 is 88683446108.

It can be written as a sum of positive squares in only one way, i.e., 61359253264 + 18805185424 = 247708^2 + 137132^2 .

It is a super-2 number, since 2×80164438688² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1252569323 + ... + 1252569386.

Almost surely, 2^80164438688 is an apocalyptic number.

It is an amenable number.

80164438688 is a deficient number, since it is larger than the sum of its proper divisors (77659300042).

80164438688 is a wasteful number, since it uses less digits than its factorization.

80164438688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505138719 (or 2505138711 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 56.

The spelling of 80164438688 in words is "eighty billion, one hundred sixty-four million, four hundred thirty-eight thousand, six hundred eighty-eight".