320657568134 has 8 divisors (see below), whose sum is σ = 480989176488. Its totient is φ = 160327842640.

The previous prime is 320657568097. The next prime is 320657568139. The reversal of 320657568134 is 431865756023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×320657568134² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320657568139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 87389 + ... + 805575.

It is an arithmetic number, because the mean of its divisors is an integer number (60123647061).

Almost surely, 2^320657568134 is an apocalyptic number.

320657568134 is a deficient number, since it is larger than the sum of its proper divisors (160331608354).

320657568134 is a wasteful number, since it uses less digits than its factorization.

320657568134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941430.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 320657568134 in words is "three hundred twenty billion, six hundred fifty-seven million, five hundred sixty-eight thousand, one hundred thirty-four".