16689222220 has 48 divisors (see below), whose sum is σ = 39266847648. Its totient is φ = 5904783360.

The previous prime is 16689222203. The next prime is 16689222271. The reversal of 16689222220 is 2222298661.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016997 + ... + 1033276.

It is an arithmetic number, because the mean of its divisors is an integer number (818059326).

Almost surely, 2^16689222220 is an apocalyptic number.

16689222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16689222220 is an abundant number, since it is smaller than the sum of its proper divisors (22577625428).

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

16689222220 is a wasteful number, since it uses less digits than its factorization.

16689222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050330 (or 2050328 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 16689222220 in words is "sixteen billion, six hundred eighty-nine million, two hundred twenty-two thousand, two hundred twenty".