16838539220 has 12 divisors (see below), whose sum is σ = 35360932404. Its totient is φ = 6735415680.

The previous prime is 16838539147. The next prime is 16838539241. The reversal of 16838539220 is 2293583861.

It can be written as a sum of positive squares in 2 ways, for example, as 3995756944 + 12842782276 = 63212^2 + 113326^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420963461 + ... + 420963500.

It is an arithmetic number, because the mean of its divisors is an integer number (2946744367).

Almost surely, 2^16838539220 is an apocalyptic number.

16838539220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16838539220 is an abundant number, since it is smaller than the sum of its proper divisors (18522393184).

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

16838539220 is a wasteful number, since it uses less digits than its factorization.

16838539220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841926970 (or 841926968 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 16838539220 in words is "sixteen billion, eight hundred thirty-eight million, five hundred thirty-nine thousand, two hundred twenty".