66527408 has 40 divisors (see below), whose sum is σ = 135178848. Its totient is φ = 31657472.

The previous prime is 66527389. The next prime is 66527413. The reversal of 66527408 is 80472566.

It is a happy number.

66527408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×66527408³ (a number of 24 digits) contains 333 as substring.

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, 107516 + ... + 108132.

Almost surely, 2^66527408 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 66527408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67589424).

66527408 is an abundant number, since it is smaller than the sum of its proper divisors (68651440).

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

66527408 is a wasteful number, since it uses less digits than its factorization.

66527408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 66527408 is about 8156.4335343335. The cubic root of 66527408 is about 405.1976031097.

The spelling of 66527408 in words is "sixty-six million, five hundred twenty-seven thousand, four hundred eight".