66338950 has 24 divisors (see below), whose sum is σ = 127648080. Its totient is φ = 25620000.

The previous prime is 66338941. The next prime is 66338957. The reversal of 66338950 is 5983366.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66338957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21426 + ... + 24325.

It is an arithmetic number, because the mean of its divisors is an integer number (5318670).

Almost surely, 2^66338950 is an apocalyptic number.

66338950 is a deficient number, since it is larger than the sum of its proper divisors (61309130).

66338950 is a wasteful number, since it uses less digits than its factorization.

66338950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45792 (or 45787 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 66338950 is about 8144.8726202440. The cubic root of 66338950 is about 404.8146283712.

The spelling of 66338950 in words is "sixty-six million, three hundred thirty-eight thousand, nine hundred fifty".