80244391168 has 72 divisors (see below), whose sum is σ = 170055530568. Its totient is φ = 37660065792.

The previous prime is 80244391109. The next prime is 80244391187. The reversal of 80244391168 is 86119344208.

It can be written as a sum of positive squares in 4 ways, for example, as 29298484224 + 50945906944 = 171168^2 + 225712^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1598580 + ... + 1648012.

It is an arithmetic number, because the mean of its divisors is an integer number (2361882369).

Almost surely, 2^80244391168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80244391168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85027765284).

80244391168 is an abundant number, since it is smaller than the sum of its proper divisors (89811139400).

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

80244391168 is a wasteful number, since it uses less digits than its factorization.

80244391168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49839 (or 49825 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 80244391168 in words is "eighty billion, two hundred forty-four million, three hundred ninety-one thousand, one hundred sixty-eight".