16044639272437 has 2 divisors, whose sum is σ = 16044639272438. Its totient is φ = 16044639272436.

The previous prime is 16044639272399. The next prime is 16044639272461. The reversal of 16044639272437 is 73427293644061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8734542841476 + 7310096430961 = 2955426^2 + 2703719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16044639272437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16044639279437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8022319636218 + 8022319636219.

It is an arithmetic number, because the mean of its divisors is an integer number (8022319636219).

Almost surely, 2^{16044639272437} is an apocalyptic number.

It is an amenable number.

16044639272437 is a deficient number, since it is larger than the sum of its proper divisors (1).

16044639272437 is an equidigital number, since it uses as much as digits as its factorization.

16044639272437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 58.

The spelling of 16044639272437 in words is "sixteen trillion, forty-four billion, six hundred thirty-nine million, two hundred seventy-two thousand, four hundred thirty-seven".