66410628 has 24 divisors (see below), whose sum is σ = 155201760. Its totient is φ = 22102080.

The previous prime is 66410627. The next prime is 66410647. The reversal of 66410628 is 82601466.

It is a happy number.

66410628 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-2 number, since 2×66410628² = 8820743022708768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66410627) by changing a digit.

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, 4288 + ... + 12296.

It is an arithmetic number, because the mean of its divisors is an integer number (6466740).

Almost surely, 2^66410628 is an apocalyptic number.

It is an amenable number.

66410628 is an abundant number, since it is smaller than the sum of its proper divisors (88791132).

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

66410628 is a wasteful number, since it uses less digits than its factorization.

66410628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8707 (or 8705 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 66410628 is about 8149.2716238938. The cubic root of 66410628 is about 404.9603741142.

The spelling of 66410628 in words is "sixty-six million, four hundred ten thousand, six hundred twenty-eight".