16881226480 has 20 divisors (see below), whose sum is σ = 39248851752. Its totient is φ = 6752490560.

The previous prime is 16881226451. The next prime is 16881226489. The reversal of 16881226480 is 8462218861.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 16881226480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16881226489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105507586 + ... + 105507745.

Almost surely, 2^16881226480 is an apocalyptic number.

16881226480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16881226480 is an abundant number, since it is smaller than the sum of its proper divisors (22367625272).

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

16881226480 is a wasteful number, since it uses less digits than its factorization.

16881226480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211015344 (or 211015338 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 16881226480 in words is "sixteen billion, eight hundred eighty-one million, two hundred twenty-six thousand, four hundred eighty".