66100506626 has 32 divisors (see below), whose sum is σ = 126246684672. Its totient is φ = 25205495760.

The previous prime is 66100506613. The next prime is 66100506629. The reversal of 66100506626 is 62660500166.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66100506626.

It is not an unprimeable number, because it can be changed into a prime (66100506629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4558976 + ... + 4573451.

It is an arithmetic number, because the mean of its divisors is an integer number (3945208896).

Almost surely, 2^66100506626 is an apocalyptic number.

66100506626 is a deficient number, since it is larger than the sum of its proper divisors (60146178046).

66100506626 is a wasteful number, since it uses less digits than its factorization.

66100506626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9132494.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 66100506626 in words is "sixty-six billion, one hundred million, five hundred six thousand, six hundred twenty-six".