320755897432 has 32 divisors (see below), whose sum is σ = 629100424800. Its totient is φ = 153029885184.

The previous prime is 320755897393. The next prime is 320755897459. The reversal of 320755897432 is 234798557023.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055843 + ... + 2206354.

It is an arithmetic number, because the mean of its divisors is an integer number (19659388275).

Almost surely, 2^320755897432 is an apocalyptic number.

It is an amenable number.

320755897432 is a deficient number, since it is larger than the sum of its proper divisors (308344527368).

320755897432 is a wasteful number, since it uses less digits than its factorization.

320755897432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262635 (or 4262631 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 320755897432 in words is "three hundred twenty billion, seven hundred fifty-five million, eight hundred ninety-seven thousand, four hundred thirty-two".