66646050 has 24 divisors (see below), whose sum is σ = 165282576. Its totient is φ = 17772240.

The previous prime is 66646049. The next prime is 66646051. The reversal of 66646050 is 5064666.

66646050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66646049) and next prime (66646051).

It is not an unprimeable number, because it can be changed into a prime (66646051) 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 11 ways as a sum of consecutive naturals, for example, 222004 + ... + 222303.

It is an arithmetic number, because the mean of its divisors is an integer number (6886774).

Almost surely, 2^66646050 is an apocalyptic number.

66646050 is an abundant number, since it is smaller than the sum of its proper divisors (98636526).

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

66646050 is a wasteful number, since it uses less digits than its factorization.

66646050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444322 (or 444317 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 66646050 is about 8163.7032038163. The cubic root of 66646050 is about 405.4383304851.

The spelling of 66646050 in words is "sixty-six million, six hundred forty-six thousand, fifty".