66226650 has 48 divisors (see below), whose sum is σ = 187708224. Its totient is φ = 15137280.

The previous prime is 66226583. The next prime is 66226651. The reversal of 66226650 is 5662266.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66226651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30487 + ... + 32586.

It is an arithmetic number, because the mean of its divisors is an integer number (3910588).

Almost surely, 2^66226650 is an apocalyptic number.

66226650 is an abundant number, since it is smaller than the sum of its proper divisors (121481574).

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

66226650 is a wasteful number, since it uses less digits than its factorization.

66226650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63095 (or 63090 counting only the distinct ones).

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

The square root of 66226650 is about 8137.9757925420. The cubic root of 66226650 is about 404.5860730544.

The spelling of 66226650 in words is "sixty-six million, two hundred twenty-six thousand, six hundred fifty".