285148662165 has 12 divisors (see below), whose sum is σ = 494257681164. Its totient is φ = 152079286464.

The previous prime is 285148662119. The next prime is 285148662167. The reversal of 285148662165 is 561266841582.

285148662165 is a `hidden beast` number, since 2 + 8 + 5 + 1 + 4 + 8 + 6 + 621 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 71255361969 + 213893300196 = 266937^2 + 462486^2 .

It is not a de Polignac number, because 285148662165 - 2⁶ = 285148662101 is a prime.

It is a super-3 number, since 3×285148662165³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285148662167) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3168318424 + ... + 3168318513.

It is an arithmetic number, because the mean of its divisors is an integer number (41188140097).

Almost surely, 2^285148662165 is an apocalyptic number.

It is an amenable number.

285148662165 is a deficient number, since it is larger than the sum of its proper divisors (209109018999).

285148662165 is a wasteful number, since it uses less digits than its factorization.

285148662165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336636948 (or 6336636945 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 285148662165 in words is "two hundred eighty-five billion, one hundred forty-eight million, six hundred sixty-two thousand, one hundred sixty-five".