16444244244461 has 16 divisors (see below), whose sum is σ = 17984656777920. Its totient is φ = 14911447489920.

The previous prime is 16444244244383. The next prime is 16444244244503.

16444244244461 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 16444244244461 - 2²² = 16444240050157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16444240244461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8368331 + ... + 10144823.

It is an arithmetic number, because the mean of its divisors is an integer number (1124041048620).

Almost surely, 2^{16444244244461} is an apocalyptic number.

16444244244461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16444244244461 is a deficient number, since it is larger than the sum of its proper divisors (1540412533459).

16444244244461 is a wasteful number, since it uses less digits than its factorization.

16444244244461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778636.

The product of its digits is 9437184, while the sum is 50.

It can be divided in two parts, 1644424 and 4244461, that added together give a palindrome (5888885).

The spelling of 16444244244461 in words is "sixteen trillion, four hundred forty-four billion, two hundred forty-four million, two hundred forty-four thousand, four hundred sixty-one".