331644643342 has 4 divisors (see below), whose sum is σ = 497466965016. Its totient is φ = 165822321670.

The previous prime is 331644643333. The next prime is 331644643373. The reversal of 331644643342 is 243346446133.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82911160834 + ... + 82911160837.

It is an arithmetic number, because the mean of its divisors is an integer number (124366741254).

Almost surely, 2^331644643342 is an apocalyptic number.

331644643342 is a deficient number, since it is larger than the sum of its proper divisors (165822321674).

331644643342 is a wasteful number, since it uses less digits than its factorization.

331644643342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165822321673.

The product of its digits is 1492992, while the sum is 43.

The spelling of 331644643342 in words is "three hundred thirty-one billion, six hundred forty-four million, six hundred forty-three thousand, three hundred forty-two".