16443416612261 has 8 divisors (see below), whose sum is σ = 16723002299040. Its totient is φ = 16163860382608.

The previous prime is 16443416612239. The next prime is 16443416612279. The reversal of 16443416612261 is 16221661434461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16443416612261 is a prime.

It is a super-3 number, since 3×16443416612261³ (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 (16443419612261) 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 7 ways as a sum of consecutive naturals, for example, 6236906 + ... + 8472651.

It is an arithmetic number, because the mean of its divisors is an integer number (2090375287380).

Almost surely, 2^{16443416612261} is an apocalyptic number.

It is an amenable number.

16443416612261 is a deficient number, since it is larger than the sum of its proper divisors (279585686779).

16443416612261 is a wasteful number, since it uses less digits than its factorization.

16443416612261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14728563.

The product of its digits is 995328, while the sum is 47.

The spelling of 16443416612261 in words is "sixteen trillion, four hundred forty-three billion, four hundred sixteen million, six hundred twelve thousand, two hundred sixty-one".