16809332480 has 36 divisors (see below), whose sum is σ = 40263607272. Its totient is φ = 6723732480.

The previous prime is 16809332473. The next prime is 16809332483. The reversal of 16809332480 is 8423390861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16809332483) 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, 6564866 + ... + 6567425.

Almost surely, 2^16809332480 is an apocalyptic number.

16809332480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16809332480 is an abundant number, since it is smaller than the sum of its proper divisors (23454274792).

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

16809332480 is an equidigital number, since it uses as much as digits as its factorization.

16809332480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13132312 (or 13132298 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 16809332480 in words is "sixteen billion, eight hundred nine million, three hundred thirty-two thousand, four hundred eighty".