16438436273133 has 160 divisors (see below), whose sum is σ = 30253996523520. Its totient is φ = 8687970213120.

The previous prime is 16438436273123. The next prime is 16438436273137. The reversal of 16438436273133 is 33137263483461.

16438436273133 is a `hidden beast` number, since 1 + 6 + 4 + 3 + 8 + 4 + 3 + 627 + 3 + 1 + 3 + 3 = 666.

It is not a de Polignac number, because 16438436273133 - 2¹⁰ = 16438436272109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16438436273133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16438436273137) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 508961041 + ... + 508993337.

It is an arithmetic number, because the mean of its divisors is an integer number (189087478272).

Almost surely, 2^{16438436273133} is an apocalyptic number.

It is an amenable number.

16438436273133 is a deficient number, since it is larger than the sum of its proper divisors (13815560250387).

16438436273133 is a wasteful number, since it uses less digits than its factorization.

16438436273133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33629 (or 33620 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 54.

The spelling of 16438436273133 in words is "sixteen trillion, four hundred thirty-eight billion, four hundred thirty-six million, two hundred seventy-three thousand, one hundred thirty-three".