16888685220 has 96 divisors (see below), whose sum is σ = 57319194240. Its totient is φ = 4094225280.

The previous prime is 16888685197. The next prime is 16888685221. The reversal of 16888685220 is 2258688861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (16888685221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1415667 + ... + 1427546.

It is an arithmetic number, because the mean of its divisors is an integer number (597074940).

Almost surely, 2^16888685220 is an apocalyptic number.

16888685220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16888685220 is an abundant number, since it is smaller than the sum of its proper divisors (40430509020).

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

16888685220 is a wasteful number, since it uses less digits than its factorization.

16888685220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843242 (or 2843234 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The spelling of 16888685220 in words is "sixteen billion, eight hundred eighty-eight million, six hundred eighty-five thousand, two hundred twenty".