20182044816 has 60 divisors (see below), whose sum is σ = 56768483772. Its totient is φ = 6693189888.

The previous prime is 20182044781. The next prime is 20182044829. The reversal of 20182044816 is 61844028102.

20182044816 is a `hidden beast` number, since 20 + 182 + 0 + 448 + 16 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17982810000 + 2199234816 = 134100^2 + 46896^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327351 + ... + 384086.

Almost surely, 2^20182044816 is an apocalyptic number.

It is an amenable number.

20182044816 is an abundant number, since it is smaller than the sum of its proper divisors (36586438956).

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

20182044816 is a wasteful number, since it uses less digits than its factorization.

20182044816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711648 (or 711639 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The spelling of 20182044816 in words is "twenty billion, one hundred eighty-two million, forty-four thousand, eight hundred sixteen".