16818276240 has 400 divisors, whose sum is σ = 62397434880. Its totient is φ = 4189086720.

The previous prime is 16818276203. The next prime is 16818276253. The reversal of 16818276240 is 4267281861.

16818276240 is a `hidden beast` number, since 1 + 6 + 8 + 18 + 2 + 7 + 624 + 0 = 666.

16818276240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5824077 + ... + 5826963.

Almost surely, 2^16818276240 is an apocalyptic number.

16818276240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16818276240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31198717440).

16818276240 is an abundant number, since it is smaller than the sum of its proper divisors (45579158640).

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

16818276240 is a wasteful number, since it uses less digits than its factorization.

16818276240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 16818276240 in words is "sixteen billion, eight hundred eighteen million, two hundred seventy-six thousand, two hundred forty".