80440124168 has 32 divisors (see below), whose sum is σ = 155397092760. Its totient is φ = 39012241920.

The previous prime is 80440124161. The next prime is 80440124183. The reversal of 80440124168 is 86142104408.

It can be written as a sum of positive squares in 4 ways, for example, as 77808639364 + 2631484804 = 278942^2 + 51298^2 .

It is a super-2 number, since 2×80440124168² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80440124161) 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 7 ways as a sum of consecutive naturals, for example, 652055 + ... + 765542.

Almost surely, 2^80440124168 is an apocalyptic number.

It is an amenable number.

80440124168 is a deficient number, since it is larger than the sum of its proper divisors (74956968592).

80440124168 is a wasteful number, since it uses less digits than its factorization.

80440124168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417817 (or 1417813 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 80440124168 in words is "eighty billion, four hundred forty million, one hundred twenty-four thousand, one hundred sixty-eight".