66124710266 has 8 divisors (see below), whose sum is σ = 99307586784. Its totient is φ = 33022181340.

The previous prime is 66124710203. The next prime is 66124710293. The reversal of 66124710266 is 66201742166.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20084840 + ... + 20088131.

It is an arithmetic number, because the mean of its divisors is an integer number (12413448348).

Almost surely, 2^66124710266 is an apocalyptic number.

66124710266 is a deficient number, since it is larger than the sum of its proper divisors (33182876518).

66124710266 is a wasteful number, since it uses less digits than its factorization.

66124710266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40173796.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 66124710266 in words is "sixty-six billion, one hundred twenty-four million, seven hundred ten thousand, two hundred sixty-six".