320466638386 has 16 divisors (see below), whose sum is σ = 481399257600. Its totient is φ = 160000314048.

The previous prime is 320466638383. The next prime is 320466638417. The reversal of 320466638386 is 683836664023.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (320466638383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7614810 + ... + 7656778.

It is an arithmetic number, because the mean of its divisors is an integer number (30087453600).

Almost surely, 2^320466638386 is an apocalyptic number.

320466638386 is a deficient number, since it is larger than the sum of its proper divisors (160932619214).

320466638386 is a wasteful number, since it uses less digits than its factorization.

320466638386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47433.

The product of its (nonzero) digits is 17915904, while the sum is 55.

The spelling of 320466638386 in words is "three hundred twenty billion, four hundred sixty-six million, six hundred thirty-eight thousand, three hundred eighty-six".