321245116636 has 24 divisors (see below), whose sum is σ = 569553546240. Its totient is φ = 158519623152.

The previous prime is 321245116601. The next prime is 321245116657. The reversal of 321245116636 is 636611542123.

It is a congruent number.

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, 196476 + ... + 825283.

It is an arithmetic number, because the mean of its divisors is an integer number (23731397760).

Almost surely, 2^321245116636 is an apocalyptic number.

It is an amenable number.

321245116636 is a deficient number, since it is larger than the sum of its proper divisors (248308429604).

321245116636 is a wasteful number, since it uses less digits than its factorization.

321245116636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022793 (or 1022791 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

Adding to 321245116636 its reverse (636611542123), we get a palindrome (957856658759).

The spelling of 321245116636 in words is "three hundred twenty-one billion, two hundred forty-five million, one hundred sixteen thousand, six hundred thirty-six".