16440810260 has 36 divisors (see below), whose sum is σ = 40162553172. Its totient is φ = 5636848896.

The previous prime is 16440810241. The next prime is 16440810271. The reversal of 16440810260 is 6201804461.

It can be written as a sum of positive squares in 2 ways, for example, as 8457745156 + 7983065104 = 91966^2 + 89348^2 .

It is a super-3 number, since 3×16440810260³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8387189 + ... + 8389148.

It is an arithmetic number, because the mean of its divisors is an integer number (1115626477).

Almost surely, 2^16440810260 is an apocalyptic number.

16440810260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16440810260 is an abundant number, since it is smaller than the sum of its proper divisors (23721742912).

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

16440810260 is a wasteful number, since it uses less digits than its factorization.

16440810260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16776360 (or 16776351 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 16440810260 in words is "sixteen billion, four hundred forty million, eight hundred ten thousand, two hundred sixty".