320634320632 has 32 divisors (see below), whose sum is σ = 613817099280. Its totient is φ = 156983948800.

The previous prime is 320634320597. The next prime is 320634320663. The reversal of 320634320632 is 236023436023.

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, 2061619 + ... + 2211682.

Almost surely, 2^320634320632 is an apocalyptic number.

It is an amenable number.

320634320632 is a deficient number, since it is larger than the sum of its proper divisors (293182778648).

320634320632 is a wasteful number, since it uses less digits than its factorization.

320634320632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273503 (or 4273499 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 34.

Adding to 320634320632 its reverse (236023436023), we get a palindrome (556657756655).

The spelling of 320634320632 in words is "three hundred twenty billion, six hundred thirty-four million, three hundred twenty thousand, six hundred thirty-two".