8505156212 has 24 divisors (see below), whose sum is σ = 17013247104. Its totient is φ = 3644438112.

The previous prime is 8505156203. The next prime is 8505156259. The reversal of 8505156212 is 2126515058.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 162953 + ... + 208719.

It is an arithmetic number, because the mean of its divisors is an integer number (708885296).

Almost surely, 2^8505156212 is an apocalyptic number.

It is an amenable number.

8505156212 is an abundant number, since it is smaller than the sum of its proper divisors (8508090892).

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

8505156212 is a wasteful number, since it uses less digits than its factorization.

8505156212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52415 (or 52413 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 8505156212 is about 92223.4038192042. The cubic root of 8505156212 is about 2041.2401318387.

The spelling of 8505156212 in words is "eight billion, five hundred five million, one hundred fifty-six thousand, two hundred twelve".