331640464442 has 16 divisors (see below), whose sum is σ = 568607884992. Its totient is φ = 142111284000.

The previous prime is 331640464427. The next prime is 331640464487. The reversal of 331640464442 is 244464046133.

It is a self number, because there is not a number n which added to its sum of digits gives 331640464442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1593788 + ... + 1789815.

It is an arithmetic number, because the mean of its divisors is an integer number (35537992812).

Almost surely, 2^331640464442 is an apocalyptic number.

331640464442 is a deficient number, since it is larger than the sum of its proper divisors (236967420550).

331640464442 is a wasteful number, since it uses less digits than its factorization.

331640464442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390613.

The product of its (nonzero) digits is 663552, while the sum is 41.

The spelling of 331640464442 in words is "three hundred thirty-one billion, six hundred forty million, four hundred sixty-four thousand, four hundred forty-two".