66025008 has 120 divisors (see below), whose sum is σ = 223655328. Its totient is φ = 17750016.

The previous prime is 66024941. The next prime is 66025021. The reversal of 66025008 is 80052066.

66025008 is a `hidden beast` number, since 6 + 602 + 50 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15210 + ... + 19062.

Almost surely, 2^66025008 is an apocalyptic number.

66025008 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66025008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111827664).

66025008 is an abundant number, since it is smaller than the sum of its proper divisors (157630320).

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

66025008 is a wasteful number, since it uses less digits than its factorization.

66025008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891 (or 3882 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 66025008 is about 8125.5773948686. The cubic root of 66025008 is about 404.1750377029.

The spelling of 66025008 in words is "sixty-six million, twenty-five thousand, eight".