85027297165 has 8 divisors (see below), whose sum is σ = 102037614840. Its totient is φ = 68018598912.

The previous prime is 85027297151. The next prime is 85027297169. The reversal of 85027297165 is 56179272058.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19594680361 + 65432616804 = 139981^2 + 255798^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85027297165 - 2⁷ = 85027297037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85027297169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286180 + ... + 501949.

It is an arithmetic number, because the mean of its divisors is an integer number (12754701855).

Almost surely, 2^85027297165 is an apocalyptic number.

It is an amenable number.

85027297165 is a deficient number, since it is larger than the sum of its proper divisors (17010317675).

85027297165 is a wasteful number, since it uses less digits than its factorization.

85027297165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809711.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 85027297165 in words is "eighty-five billion, twenty-seven million, two hundred ninety-seven thousand, one hundred sixty-five".