66754110227506 has 192 divisors, whose sum is σ = 113799088166400. Its totient is φ = 29318323507200.

The previous prime is 66754110227449. The next prime is 66754110227507. The reversal of 66754110227506 is 60572201145766.

It is a super-2 number, since 2×66754110227506² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66754110227507) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 185944596555 + ... + 185944596913.

It is an arithmetic number, because the mean of its divisors is an integer number (592703584200).

Almost surely, 2^{66754110227506} is an apocalyptic number.

66754110227506 is a deficient number, since it is larger than the sum of its proper divisors (47044977938894).

66754110227506 is a wasteful number, since it uses less digits than its factorization.

66754110227506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 66754110227506 in words is "sixty-six trillion, seven hundred fifty-four billion, one hundred ten million, two hundred twenty-seven thousand, five hundred six".