83404140816 has 80 divisors (see below), whose sum is σ = 230905113984. Its totient is φ = 25873892352.

The previous prime is 83404140811. The next prime is 83404140829. The reversal of 83404140816 is 61804140438.

It is not an unprimeable number, because it can be changed into a prime (83404140811) 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, 980061 + ... + 1061756.

Almost surely, 2^83404140816 is an apocalyptic number.

It is an amenable number.

83404140816 is an abundant number, since it is smaller than the sum of its proper divisors (147500973168).

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

83404140816 is a wasteful number, since it uses less digits than its factorization.

83404140816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041888 (or 2041882 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 83404140816 in words is "eighty-three billion, four hundred four million, one hundred forty thousand, eight hundred sixteen".