8321901165 has 12 divisors (see below), whose sum is σ = 14424628764. Its totient is φ = 4438347264.

The previous prime is 8321901157. The next prime is 8321901167. The reversal of 8321901165 is 5611091238.

It can be written as a sum of positive squares in 2 ways, for example, as 4205652201 + 4116248964 = 64851^2 + 64158^2 .

It is not a de Polignac number, because 8321901165 - 2³ = 8321901157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8321901167) 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, 92465524 + ... + 92465613.

It is an arithmetic number, because the mean of its divisors is an integer number (1202052397).

Almost surely, 2^8321901165 is an apocalyptic number.

It is an amenable number.

8321901165 is a deficient number, since it is larger than the sum of its proper divisors (6102727599).

8321901165 is a wasteful number, since it uses less digits than its factorization.

8321901165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184931148 (or 184931145 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 8321901165 is about 91224.4548627176. The cubic root of 8321901165 is about 2026.4731374883.

The spelling of 8321901165 in words is "eight billion, three hundred twenty-one million, nine hundred one thousand, one hundred sixty-five".