2018370816 has 432 divisors, whose sum is σ = 7509884928. Its totient is φ = 505958400.

The previous prime is 2018370803. The next prime is 2018370821. The reversal of 2018370816 is 6180738102.

2018370816 is a `hidden beast` number, since 201 + 8 + 370 + 81 + 6 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5499465 + ... + 5499831.

Almost surely, 2^2018370816 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 2018370816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3754942464).

2018370816 is an abundant number, since it is smaller than the sum of its proper divisors (5491514112).

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

2018370816 is a wasteful number, since it uses less digits than its factorization.

2018370816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2018370816 is about 44926.2820184355. The cubic root of 2018370816 is about 1263.7669281310.

The spelling of 2018370816 in words is "two billion, eighteen million, three hundred seventy thousand, eight hundred sixteen".