8152115085 has 24 divisors (see below), whose sum is σ = 14134160664. Its totient is φ = 4346616960.

The previous prime is 8152115071. The next prime is 8152115087. The reversal of 8152115085 is 5805112518.

8152115085 is a `hidden beast` number, since 8 + 1 + 521 + 1 + 50 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 177982281 + 7974132804 = 13341^2 + 89298^2 .

It is not a de Polignac number, because 8152115085 - 2¹⁵ = 8152082317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8152115087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158419 + ... + 203471.

It is an arithmetic number, because the mean of its divisors is an integer number (588923361).

Almost surely, 2^8152115085 is an apocalyptic number.

It is an amenable number.

8152115085 is a deficient number, since it is larger than the sum of its proper divisors (5982045579).

8152115085 is a wasteful number, since it uses less digits than its factorization.

8152115085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49085 (or 49082 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 36.

The square root of 8152115085 is about 90289.0640387860. The cubic root of 8152115085 is about 2012.5967514408.

The spelling of 8152115085 in words is "eight billion, one hundred fifty-two million, one hundred fifteen thousand, eighty-five".