16409113680 has 80 divisors (see below), whose sum is σ = 50888260800. Its totient is φ = 4374042624.

The previous prime is 16409113631. The next prime is 16409113681. The reversal of 16409113680 is 8631190461.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16409113681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670296 + ... + 694344.

It is an arithmetic number, because the mean of its divisors is an integer number (636103260).

Almost surely, 2^16409113680 is an apocalyptic number.

16409113680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16409113680 is an abundant number, since it is smaller than the sum of its proper divisors (34479147120).

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

16409113680 is a wasteful number, since it uses less digits than its factorization.

16409113680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26908 (or 26902 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

It can be divided in two parts, 164091 and 13680, that added together give a palindrome (177771).

The spelling of 16409113680 in words is "sixteen billion, four hundred nine million, one hundred thirteen thousand, six hundred eighty".