66011008 has 32 divisors (see below), whose sum is σ = 150294960. Its totient is φ = 28290048.

The previous prime is 66011003. The next prime is 66011021. The reversal of 66011008 is 80011066.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 66011008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66011003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35941 + ... + 37732.

Almost surely, 2^66011008 is an apocalyptic number.

It is an amenable number.

66011008 is an abundant number, since it is smaller than the sum of its proper divisors (84283952).

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

66011008 is an equidigital number, since it uses as much as digits as its factorization.

66011008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73694 (or 73682 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 66011008 is about 8124.7158719552. The cubic root of 66011008 is about 404.1464684749.

The spelling of 66011008 in words is "sixty-six million, eleven thousand, eight".