66226750 has 32 divisors (see below), whose sum is σ = 125300448. Its totient is φ = 26208000.

The previous prime is 66226739. The next prime is 66226777. The reversal of 66226750 is 5762266.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22885 + ... + 25615.

It is an arithmetic number, because the mean of its divisors is an integer number (3915639).

Almost surely, 2^66226750 is an apocalyptic number.

66226750 is a deficient number, since it is larger than the sum of its proper divisors (59073698).

66226750 is a wasteful number, since it uses less digits than its factorization.

66226750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 66226750 is about 8137.9819365737. The cubic root of 66226750 is about 404.5862766914.

The spelling of 66226750 in words is "sixty-six million, two hundred twenty-six thousand, seven hundred fifty".