16144433645313 has 4 divisors (see below), whose sum is σ = 21525911527088. Its totient is φ = 10762955763540.

The previous prime is 16144433645309. The next prime is 16144433645323. The reversal of 16144433645313 is 31354633444161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16144433645313 - 2² = 16144433645309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16144433645323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690738940883 + ... + 2690738940888.

It is an arithmetic number, because the mean of its divisors is an integer number (5381477881772).

Almost surely, 2^{16144433645313} is an apocalyptic number.

It is an amenable number.

16144433645313 is a deficient number, since it is larger than the sum of its proper divisors (5381477881775).

16144433645313 is an equidigital number, since it uses as much as digits as its factorization.

16144433645313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381477881774.

The product of its digits is 3732480, while the sum is 48.

The spelling of 16144433645313 in words is "sixteen trillion, one hundred forty-four billion, four hundred thirty-three million, six hundred forty-five thousand, three hundred thirteen".