320612666439 has 8 divisors (see below), whose sum is σ = 460366905712. Its totient is φ = 197300102400.

The previous prime is 320612666419. The next prime is 320612666447. The reversal of 320612666439 is 934666216023.

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

It is not a de Polignac number, because 320612666439 - 2⁹ = 320612665927 is a prime.

It is a super-2 number, since 2×320612666439² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320612666419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4110418762 + ... + 4110418839.

It is an arithmetic number, because the mean of its divisors is an integer number (57545863214).

Almost surely, 2^320612666439 is an apocalyptic number.

320612666439 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

320612666439 is a deficient number, since it is larger than the sum of its proper divisors (139754239273).

320612666439 is a wasteful number, since it uses less digits than its factorization.

320612666439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8220837617.

The product of its (nonzero) digits is 1679616, while the sum is 48.

The spelling of 320612666439 in words is "three hundred twenty billion, six hundred twelve million, six hundred sixty-six thousand, four hundred thirty-nine".