320420373163020 has 192 divisors, whose sum is σ = 1077536062512000. Its totient is φ = 78579499686912.

The previous prime is 320420373163013. The next prime is 320420373163027. The reversal of 320420373163020 is 20361373024023.

320420373163020 is a `hidden beast` number, since 3 + 2 + 0 + 4 + 2 + 0 + 37 + 316 + 302 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (320420373163013) and next prime (320420373163027).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (320420373163027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82951635 + ... + 86728394.

It is an arithmetic number, because the mean of its divisors is an integer number (5612166992250).

Almost surely, 2^{320420373163020} is an apocalyptic number.

320420373163020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320420373163020 is an abundant number, since it is smaller than the sum of its proper divisors (757115689348980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320420373163020 is a wasteful number, since it uses less digits than its factorization.

320420373163020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169680329 (or 169680321 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 36.

The spelling of 320420373163020 in words is "three hundred twenty trillion, four hundred twenty billion, three hundred seventy-three million, one hundred sixty-three thousand, twenty".