80366819364 has 108 divisors (see below), whose sum is σ = 226062562908. Its totient is φ = 23930432640.

The previous prime is 80366819347. The next prime is 80366819387. The reversal of 80366819364 is 46391866308.

It can be written as a sum of positive squares in 2 ways, for example, as 44019396864 + 36347422500 = 209808^2 + 190650^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80366819364.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 360402 + ... + 539094.

Almost surely, 2^80366819364 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 80366819364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113031281454).

80366819364 is an abundant number, since it is smaller than the sum of its proper divisors (145695743544).

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

80366819364 is a wasteful number, since it uses less digits than its factorization.

80366819364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178778 (or 178742 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 80366819364 in words is "eighty billion, three hundred sixty-six million, eight hundred nineteen thousand, three hundred sixty-four".