320028920316 has 36 divisors (see below), whose sum is σ = 924527992752. Its totient is φ = 91436834304.

The previous prime is 320028920311. The next prime is 320028920339. The reversal of 320028920316 is 613029820023.

320028920316 is a `hidden beast` number, since 320 + 0 + 289 + 20 + 31 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320028920311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634977765 + ... + 634978268.

It is an arithmetic number, because the mean of its divisors is an integer number (25681333132).

Almost surely, 2^320028920316 is an apocalyptic number.

320028920316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

320028920316 is an abundant number, since it is smaller than the sum of its proper divisors (604499072436).

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

320028920316 is a wasteful number, since it uses less digits than its factorization.

320028920316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269956050 (or 1269956045 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 320028920316 in words is "three hundred twenty billion, twenty-eight million, nine hundred twenty thousand, three hundred sixteen".