16842687220 has 24 divisors (see below), whose sum is σ = 35525466144. Its totient is φ = 6707394336.

The previous prime is 16842687187. The next prime is 16842687241. The reversal of 16842687220 is 2278624861.

It is a super-3 number, since 3×16842687220³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1850382 + ... + 1859461.

It is an arithmetic number, because the mean of its divisors is an integer number (1480227756).

Almost surely, 2^16842687220 is an apocalyptic number.

16842687220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16842687220 is an abundant number, since it is smaller than the sum of its proper divisors (18682778924).

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

16842687220 is a wasteful number, since it uses less digits than its factorization.

16842687220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710079 (or 3710077 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 16842687220 in words is "sixteen billion, eight hundred forty-two million, six hundred eighty-seven thousand, two hundred twenty".