8165142050 has 54 divisors (see below), whose sum is σ = 16462019187. Its totient is φ = 3011754720.

The previous prime is 8165142017. The next prime is 8165142077. The reversal of 8165142050 is 502415618.

It can be written as a sum of positive squares in 5 ways, for example, as 511166881 + 7653975169 = 22609^2 + 87487^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=63895.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8165141998 and 8165142016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8305859 + ... + 8306841.

Almost surely, 2^8165142050 is an apocalyptic number.

8165142050 is an abundant number, since it is smaller than the sum of its proper divisors (8296877137).

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

8165142050 is an equidigital number, since it uses as much as digits as its factorization.

8165142050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 8165142050 is about 90361.1755678289. The cubic root of 8165142050 is about 2013.6682146625.

Multiplying 8165142050 by its sum of digits (32), we get a square (261284545600 = 511160²).

Adding to 8165142050 its reverse (502415618), we get a palindrome (8667557668).

The spelling of 8165142050 in words is "eight billion, one hundred sixty-five million, one hundred forty-two thousand, fifty".