86066565 has 32 divisors (see below), whose sum is σ = 148780800. Its totient is φ = 42233856.

The previous prime is 86066557. The next prime is 86066569. The reversal of 86066565 is 56566068.

It is not a de Polignac number, because 86066565 - 2³ = 86066557 is a prime.

It is a super-2 number, since 2×86066565² = 14814907221798450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86066569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87064 + ... + 88046.

It is an arithmetic number, because the mean of its divisors is an integer number (4649400).

Almost surely, 2^86066565 is an apocalyptic number.

It is an amenable number.

86066565 is a deficient number, since it is larger than the sum of its proper divisors (62714235).

86066565 is a wasteful number, since it uses less digits than its factorization.

86066565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 86066565 is about 9277.2067455673. The cubic root of 86066565 is about 441.5143499135.

The spelling of 86066565 in words is "eighty-six million, sixty-six thousand, five hundred sixty-five".