320072310443506 has 16 divisors (see below), whose sum is σ = 505378004558400. Its totient is φ = 151612998000048.

The previous prime is 320072310443467. The next prime is 320072310443521. The reversal of 320072310443506 is 605344013270023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25595880 + ... + 35990188.

It is an arithmetic number, because the mean of its divisors is an integer number (31586125284900).

Almost surely, 2^{320072310443506} is an apocalyptic number.

320072310443506 is a deficient number, since it is larger than the sum of its proper divisors (185305694114894).

320072310443506 is a wasteful number, since it uses less digits than its factorization.

320072310443506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11204673.

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 320072310443506 in words is "three hundred twenty trillion, seventy-two billion, three hundred ten million, four hundred forty-three thousand, five hundred six".