86550165 has 24 divisors (see below), whose sum is σ = 161561400. Its totient is φ = 42609024.

The previous prime is 86550151. The next prime is 86550197. The reversal of 86550165 is 56105568.

It can be written as a sum of positive squares in 4 ways, for example, as 13242321 + 73307844 = 3639^2 + 8562^2 .

It is not a de Polignac number, because 86550165 - 2⁵ = 86550133 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73390 + ... + 74559.

It is an arithmetic number, because the mean of its divisors is an integer number (6731725).

Almost surely, 2^86550165 is an apocalyptic number.

It is an amenable number.

86550165 is a deficient number, since it is larger than the sum of its proper divisors (75011235).

86550165 is a wasteful number, since it uses less digits than its factorization.

86550165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147973 (or 147970 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 86550165 is about 9303.2341150806. The cubic root of 86550165 is about 442.3397485409.

The spelling of 86550165 in words is "eighty-six million, five hundred fifty thousand, one hundred sixty-five".