8321506580911 has 4 divisors (see below), whose sum is σ = 8438710899024. Its totient is φ = 8204302262800.

The previous prime is 8321506580903. The next prime is 8321506580941. The reversal of 8321506580911 is 1190856051238.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8321506580911 - 2³ = 8321506580903 is a prime.

It is a super-2 number, since 2×8321506580911² (a number of 27 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 (8321506580941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58602158950 + ... + 58602159091.

It is an arithmetic number, because the mean of its divisors is an integer number (2109677724756).

Almost surely, 2^{8321506580911} is an apocalyptic number.

8321506580911 is a deficient number, since it is larger than the sum of its proper divisors (117204318113).

8321506580911 is a wasteful number, since it uses less digits than its factorization.

8321506580911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117204318112.

The product of its (nonzero) digits is 518400, while the sum is 49.

The spelling of 8321506580911 in words is "eight trillion, three hundred twenty-one billion, five hundred six million, five hundred eighty thousand, nine hundred eleven".