320221473285 has 16 divisors (see below), whose sum is σ = 585547837056. Its totient is φ = 146386959168.

The previous prime is 320221473251. The next prime is 320221473293. The reversal of 320221473285 is 582374122023.

It is not a de Polignac number, because 320221473285 - 2⁹ = 320221472773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1524864054 + ... + 1524864263.

It is an arithmetic number, because the mean of its divisors is an integer number (36596739816).

Almost surely, 2^320221473285 is an apocalyptic number.

320221473285 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320221473285 is a deficient number, since it is larger than the sum of its proper divisors (265326363771).

320221473285 is a wasteful number, since it uses less digits than its factorization.

320221473285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049728332.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 320221473285 in words is "three hundred twenty billion, two hundred twenty-one million, four hundred seventy-three thousand, two hundred eighty-five".