331264204613 has 8 divisors (see below), whose sum is σ = 332466231576. Its totient is φ = 330062342400.

The previous prime is 331264204571. The next prime is 331264204619. The reversal of 331264204613 is 316402462133.

It can be written as a sum of positive squares in 4 ways, for example, as 48513586564 + 282750618049 = 220258^2 + 531743^2 .

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 331264204613 - 2²² = 331260010309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331264204619) 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, 5181623 + ... + 5245163.

It is an arithmetic number, because the mean of its divisors is an integer number (41558278947).

Almost surely, 2^331264204613 is an apocalyptic number.

It is an amenable number.

331264204613 is a deficient number, since it is larger than the sum of its proper divisors (1202026963).

331264204613 is a wasteful number, since it uses less digits than its factorization.

331264204613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82375.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 331264204613 its reverse (316402462133), we get a palindrome (647666666746).

The spelling of 331264204613 in words is "three hundred thirty-one billion, two hundred sixty-four million, two hundred four thousand, six hundred thirteen".