320552564340 has 96 divisors (see below), whose sum is σ = 928842735744. Its totient is φ = 82535431680.

The previous prime is 320552564257. The next prime is 320552564359. The reversal of 320552564340 is 43465255023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260299 + ... + 841938.

It is an arithmetic number, because the mean of its divisors is an integer number (9675445164).

Almost surely, 2^320552564340 is an apocalyptic number.

320552564340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320552564340 is an abundant number, since it is smaller than the sum of its proper divisors (608290171404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320552564340 is a wasteful number, since it uses less digits than its factorization.

320552564340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102417 (or 1102415 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 39.

The spelling of 320552564340 in words is "three hundred twenty billion, five hundred fifty-two million, five hundred sixty-four thousand, three hundred forty".