66470008 has 32 divisors (see below), whose sum is σ = 136805760. Its totient is φ = 30026080.

The previous prime is 66469993. The next prime is 66470029. The reversal of 66470008 is 80007466.

66470008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12435 + ... + 16957.

It is an arithmetic number, because the mean of its divisors is an integer number (4275180).

Almost surely, 2^66470008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66470008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68402880).

66470008 is an abundant number, since it is smaller than the sum of its proper divisors (70335752).

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

66470008 is a wasteful number, since it uses less digits than its factorization.

66470008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707 (or 4703 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 66470008 is about 8152.9140802538. The cubic root of 66470008 is about 405.0810344380.

It can be divided in two parts, 66 and 470008, that added together give a palindrome (470074).

The spelling of 66470008 in words is "sixty-six million, four hundred seventy thousand, eight".