66008870 has 16 divisors (see below), whose sum is σ = 121579920. Its totient is φ = 25789344.

The previous prime is 66008861. The next prime is 66008879. The reversal of 66008870 is 7880066.

It is an interprime number because it is at equal distance from previous prime (66008861) and next prime (66008879).

It is a self number, because there is not a number n which added to its sum of digits gives 66008870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66008879) by changing a digit.

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, 76325 + ... + 77184.

It is an arithmetic number, because the mean of its divisors is an integer number (7598745).

Almost surely, 2^66008870 is an apocalyptic number.

66008870 is a deficient number, since it is larger than the sum of its proper divisors (55571050).

66008870 is a wasteful number, since it uses less digits than its factorization.

66008870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153559.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 66008870 is about 8124.5842970579. The cubic root of 66008870 is about 404.1421051901.

The spelling of 66008870 in words is "sixty-six million, eight thousand, eight hundred seventy".