66650411 has 8 divisors (see below), whose sum is σ = 67604544. Its totient is φ = 65700040.

The previous prime is 66650401. The next prime is 66650443. The reversal of 66650411 is 11405666.

66650411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66650411 - 2¹⁴ = 66634027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66650401) 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, 68156 + ... + 69126.

It is an arithmetic number, because the mean of its divisors is an integer number (8450568).

Almost surely, 2^66650411 is an apocalyptic number.

66650411 is a deficient number, since it is larger than the sum of its proper divisors (954133).

66650411 is an equidigital number, since it uses as much as digits as its factorization.

66650411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 66650411 is about 8163.9702963693. The cubic root of 66650411 is about 405.4471736098.

The spelling of 66650411 in words is "sixty-six million, six hundred fifty thousand, four hundred eleven".