8165506536 has 256 divisors, whose sum is σ = 25613280000. Its totient is φ = 2388787200.

The previous prime is 8165506501. The next prime is 8165506627. The reversal of 8165506536 is 6356055618.

8165506536 is a `hidden beast` number, since 8 + 1 + 6 + 550 + 65 + 36 = 666.

It is a super-3 number, since 3×8165506536³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8165506491 and 8165506500.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10617960 + ... + 10618728.

It is an arithmetic number, because the mean of its divisors is an integer number (100051875).

Almost surely, 2^8165506536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8165506536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12806640000).

8165506536 is an abundant number, since it is smaller than the sum of its proper divisors (17447773464).

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

8165506536 is a wasteful number, since it uses less digits than its factorization.

8165506536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The square root of 8165506536 is about 90363.1923738864. The cubic root of 8165506536 is about 2013.6981771114.

The spelling of 8165506536 in words is "eight billion, one hundred sixty-five million, five hundred six thousand, five hundred thirty-six".