1320016444171 has 4 divisors (see below), whose sum is σ = 1321134156144. Its totient is φ = 1318898732200.

The previous prime is 1320016444169. The next prime is 1320016444217. The reversal of 1320016444171 is 1714446100231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320016444171 - 2¹ = 1320016444169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320016444141) 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, 558854215 + ... + 558856576.

It is an arithmetic number, because the mean of its divisors is an integer number (330283539036).

Almost surely, 2^{1320016444171} is an apocalyptic number.

1320016444171 is a deficient number, since it is larger than the sum of its proper divisors (1117711973).

1320016444171 is a wasteful number, since it uses less digits than its factorization.

1320016444171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117711972.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 1320016444171 in words is "one trillion, three hundred twenty billion, sixteen million, four hundred forty-four thousand, one hundred seventy-one".