16442341625637 has 6 divisors (see below), whose sum is σ = 23750049014822. Its totient is φ = 10961561083752.

The previous prime is 16442341625623. The next prime is 16442341625659. The reversal of 16442341625637 is 73652614324461.

16442341625637 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 2 + 3 + 4 + 1 + 625 + 6 + 3 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16257677190561 + 184664435076 = 4032081^2 + 429726^2 .

It is not a de Polignac number, because 16442341625637 - 2¹⁸ = 16442341363493 is a prime.

It is a super-3 number, since 3×16442341625637³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442341625837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 913463423638 + ... + 913463423655.

Almost surely, 2^{16442341625637} is an apocalyptic number.

It is an amenable number.

16442341625637 is a deficient number, since it is larger than the sum of its proper divisors (7307707389185).

16442341625637 is a wasteful number, since it uses less digits than its factorization.

16442341625637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826926847299 (or 1826926847296 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 54.

The spelling of 16442341625637 in words is "sixteen trillion, four hundred forty-two billion, three hundred forty-one million, six hundred twenty-five thousand, six hundred thirty-seven".