8165850912 has 36 divisors (see below), whose sum is σ = 23221639350. Its totient is φ = 2721950208.

The previous prime is 8165850911. The next prime is 8165850919. The reversal of 8165850912 is 2190585618.

It is a happy number.

8165850912 is a `hidden beast` number, since 81 + 6 + 58 + 509 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6901621776 + 1264229136 = 83076^2 + 35556^2 .

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

It is a super-2 number, since 2×8165850912² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8165850911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14176537 + ... + 14177112.

Almost surely, 2^8165850912 is an apocalyptic number.

It is an amenable number.

8165850912 is an abundant number, since it is smaller than the sum of its proper divisors (15055788438).

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

8165850912 is a wasteful number, since it uses less digits than its factorization.

8165850912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28353665 (or 28353654 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The square root of 8165850912 is about 90365.0978641643. The cubic root of 8165850912 is about 2013.7264856052.

The spelling of 8165850912 in words is "eight billion, one hundred sixty-five million, eight hundred fifty thousand, nine hundred twelve".