320064500012091 has 24 divisors (see below), whose sum is σ = 453333913556160. Its totient is φ = 200824121596032.

The previous prime is 320064500012083. The next prime is 320064500012123. The reversal of 320064500012091 is 190210005460023.

It is not a de Polignac number, because 320064500012091 - 2³ = 320064500012083 is a prime.

It is a super-3 number, since 3×320064500012091³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (320064500012021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 490315200 + ... + 490967538.

It is an arithmetic number, because the mean of its divisors is an integer number (18888913064840).

Almost surely, 2^{320064500012091} is an apocalyptic number.

320064500012091 is a deficient number, since it is larger than the sum of its proper divisors (133269413544069).

320064500012091 is a wasteful number, since it uses less digits than its factorization.

320064500012091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218283 (or 1218266 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 320064500012091 in words is "three hundred twenty trillion, sixty-four billion, five hundred million, twelve thousand, ninety-one".