6166065985 has 8 divisors (see below), whose sum is σ = 7654426920. Its totient is φ = 4762754304.

The previous prime is 6166065911. The next prime is 6166066019. The reversal of 6166065985 is 5895606616.

It can be written as a sum of positive squares in 4 ways, for example, as 1887728704 + 4278337281 = 43448^2 + 65409^2 .

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 6166065985 - 2⁹ = 6166065473 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 21262152 + ... + 21262441.

It is an arithmetic number, because the mean of its divisors is an integer number (956803365).

Almost surely, 2^6166065985 is an apocalyptic number.

It is an amenable number.

6166065985 is a deficient number, since it is larger than the sum of its proper divisors (1488360935).

6166065985 is a wasteful number, since it uses less digits than its factorization.

6166065985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42524627.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The square root of 6166065985 is about 78524.3018752793. The cubic root of 6166065985 is about 1833.7328113691.

The spelling of 6166065985 in words is "six billion, one hundred sixty-six million, sixty-five thousand, nine hundred eighty-five".