83566065 has 16 divisors (see below), whose sum is σ = 145861056. Its totient is φ = 40516800.

The previous prime is 83566057. The next prime is 83566103. The reversal of 83566065 is 56066538.

It is not a de Polignac number, because 83566065 - 2³ = 83566057 is a prime.

It is a super-3 number, since 3×83566065³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 253066 + ... + 253395.

It is an arithmetic number, because the mean of its divisors is an integer number (9116316).

Almost surely, 2^83566065 is an apocalyptic number.

It is an amenable number.

83566065 is a deficient number, since it is larger than the sum of its proper divisors (62294991).

83566065 is a wasteful number, since it uses less digits than its factorization.

83566065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506480.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 83566065 is about 9141.4476424689. The cubic root of 83566065 is about 437.1964740963.

The spelling of 83566065 in words is "eighty-three million, five hundred sixty-six thousand, sixty-five".