163444644326111 has 8 divisors (see below), whose sum is σ = 164894994700704. Its totient is φ = 161994363032320.

The previous prime is 163444644326107. The next prime is 163444644326179. The reversal of 163444644326111 is 111623446444361.

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

It is a cyclic number.

It is not a de Polignac number, because 163444644326111 - 2² = 163444644326107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163444644326111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163444674326111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12511430 + ... + 21986931.

It is an arithmetic number, because the mean of its divisors is an integer number (20611874337588).

Almost surely, 2^{163444644326111} is an apocalyptic number.

163444644326111 is a deficient number, since it is larger than the sum of its proper divisors (1450350374593).

163444644326111 is a wasteful number, since it uses less digits than its factorization.

163444644326111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34540401.

The product of its digits is 3981312, while the sum is 50.

The spelling of 163444644326111 in words is "one hundred sixty-three trillion, four hundred forty-four billion, six hundred forty-four million, three hundred twenty-six thousand, one hundred eleven".