16544495331 has 96 divisors (see below), whose sum is σ = 30858347520. Its totient is φ = 8306323200.

The previous prime is 16544495299. The next prime is 16544495377. The reversal of 16544495331 is 13359444561.

16544495331 is a `hidden beast` number, since 16 + 544 + 4 + 95 + 3 + 3 + 1 = 666.

It is not a de Polignac number, because 16544495331 - 2⁵ = 16544495299 is a prime.

It is a super-2 number, since 2×16544495331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16544491331) 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 in 95 ways as a sum of consecutive naturals, for example, 1681416 + ... + 1691226.

It is an arithmetic number, because the mean of its divisors is an integer number (321441120).

Almost surely, 2^16544495331 is an apocalyptic number.

16544495331 is a deficient number, since it is larger than the sum of its proper divisors (14313852189).

16544495331 is a wasteful number, since it uses less digits than its factorization.

16544495331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9937 (or 9934 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 16544495331 in words is "sixteen billion, five hundred forty-four million, four hundred ninety-five thousand, three hundred thirty-one".