8590065666 has 128 divisors (see below), whose sum is σ = 21483280896. Its totient is φ = 2229534720.

The previous prime is 8590065629. The next prime is 8590065703. The reversal of 8590065666 is 6665600958.

8590065666 is nontrivially palindromic in base 4 and base 16.

It is an interprime number because it is at equal distance from previous prime (8590065629) and next prime (8590065703).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12763506 + ... + 12764178.

It is an arithmetic number, because the mean of its divisors is an integer number (167838132).

Almost surely, 2^8590065666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8590065666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10741640448).

8590065666 is an abundant number, since it is smaller than the sum of its proper divisors (12893215230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8590065666 is a wasteful number, since it uses less digits than its factorization.

8590065666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The square root of 8590065666 is about 92682.6071385565. The cubic root of 8590065666 is about 2048.0104167726.

The spelling of 8590065666 in words is "eight billion, five hundred ninety million, sixty-five thousand, six hundred sixty-six".