66633130 has 16 divisors (see below), whose sum is σ = 120125664. Its totient is φ = 26611920.

The previous prime is 66633113. The next prime is 66633157. The reversal of 66633130 is 3133666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2089 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (7507854).

Almost surely, 2^66633130 is an apocalyptic number.

66633130 is a deficient number, since it is larger than the sum of its proper divisors (53492534).

66633130 is a wasteful number, since it uses less digits than its factorization.

66633130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10341.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 66633130 is about 8162.9118579095. The cubic root of 66633130 is about 405.4121293736.

Adding to 66633130 its reverse (3133666), we get a palindrome (69766796).

The spelling of 66633130 in words is "sixty-six million, six hundred thirty-three thousand, one hundred thirty".