320444691201 has 12 divisors (see below), whose sum is σ = 462869575012. Its totient is φ = 213627476736.

The previous prime is 320444691181. The next prime is 320444691233. The reversal of 320444691201 is 102196444023.

320444691201 is a `hidden beast` number, since 3 + 2 + 0 + 4 + 446 + 9 + 1 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 123428552976 + 197016138225 = 351324^2 + 443865^2 .

It is not a de Polignac number, because 320444691201 - 2⁹ = 320444690689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320444691241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251045 + ... + 1485261.

Almost surely, 2^320444691201 is an apocalyptic number.

It is an amenable number.

320444691201 is a deficient number, since it is larger than the sum of its proper divisors (142424883811).

320444691201 is a wasteful number, since it uses less digits than its factorization.

320444691201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386240 (or 386237 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 320444691201 in words is "three hundred twenty billion, four hundred forty-four million, six hundred ninety-one thousand, two hundred one".