16081447369 has 8 divisors (see below), whose sum is σ = 17394111560. Its totient is φ = 14779587456.

The previous prime is 16081447367. The next prime is 16081447379. The reversal of 16081447369 is 96374418061.

It can be written as a sum of positive squares in 4 ways, for example, as 2342560000 + 13738887369 = 48400^2 + 117213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16081447369 - 2¹ = 16081447367 is a prime.

It is a super-2 number, since 2×16081447369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16081447363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2697972 + ... + 2703925.

It is an arithmetic number, because the mean of its divisors is an integer number (2174263945).

Almost surely, 2^16081447369 is an apocalyptic number.

It is an amenable number.

16081447369 is a deficient number, since it is larger than the sum of its proper divisors (1312664191).

16081447369 is a wasteful number, since it uses less digits than its factorization.

16081447369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402139.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 16081447369 in words is "sixteen billion, eighty-one million, four hundred forty-seven thousand, three hundred sixty-nine".