320440263206 has 16 divisors (see below), whose sum is σ = 559690811424. Its totient is φ = 134740379904.

The previous prime is 320440263197. The next prime is 320440263239. The reversal of 320440263206 is 602362044023.

It is a congruent number.

It is an unprimeable number.

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, 215929355 + ... + 215930838.

It is an arithmetic number, because the mean of its divisors is an integer number (34980675714).

Almost surely, 2^320440263206 is an apocalyptic number.

320440263206 is a deficient number, since it is larger than the sum of its proper divisors (239250548218).

320440263206 is a wasteful number, since it uses less digits than its factorization.

320440263206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431860255.

The product of its (nonzero) digits is 41472, while the sum is 32.

The spelling of 320440263206 in words is "three hundred twenty billion, four hundred forty million, two hundred sixty-three thousand, two hundred six".