16440810272 has 12 divisors (see below), whose sum is σ = 32367845286. Its totient is φ = 8220405120.

The previous prime is 16440810271. The next prime is 16440810283. The reversal of 16440810272 is 27201804461.

It can be written as a sum of positive squares in only one way, i.e., 15444524176 + 996286096 = 124276^2 + 31564^2 .

It is a super-3 number, since 3×16440810272³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16440810271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256887629 + ... + 256887692.

Almost surely, 2^16440810272 is an apocalyptic number.

It is an amenable number.

16440810272 is a deficient number, since it is larger than the sum of its proper divisors (15927035014).

16440810272 is an equidigital number, since it uses as much as digits as its factorization.

16440810272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513775331 (or 513775323 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The spelling of 16440810272 in words is "sixteen billion, four hundred forty million, eight hundred ten thousand, two hundred seventy-two".