320764206464020 has 48 divisors (see below), whose sum is σ = 734897241505728. Its totient is φ = 116632703452160.

The previous prime is 320764206463991. The next prime is 320764206464027. The reversal of 320764206464020 is 20464602467023.

It is a happy number.

It is a super-3 number, since 3×320764206464020³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320764206464027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52249222 + ... + 58064701.

It is an arithmetic number, because the mean of its divisors is an integer number (15310359198036).

Almost surely, 2^{320764206464020} is an apocalyptic number.

It is an amenable number.

320764206464020 is an abundant number, since it is smaller than the sum of its proper divisors (414133035041708).

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

320764206464020 is a wasteful number, since it uses less digits than its factorization.

320764206464020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110327160 (or 110327158 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 46.

The spelling of 320764206464020 in words is "three hundred twenty trillion, seven hundred sixty-four billion, two hundred six million, four hundred sixty-four thousand, twenty".