66110157822807 has 72 divisors (see below), whose sum is σ = 113930688100320. Its totient is φ = 36811046522880.

The previous prime is 66110157822743. The next prime is 66110157822817. The reversal of 66110157822807 is 70822875101166.

66110157822807 is a `hidden beast` number, since 6 + 61 + 1 + 0 + 1 + 578 + 2 + 2 + 8 + 0 + 7 = 666.

66110157822807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66110157822807 - 2⁶ = 66110157822743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66110157822817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12659319 + ... + 17102007.

It is an arithmetic number, because the mean of its divisors is an integer number (1582370668060).

Almost surely, 2^{66110157822807} is an apocalyptic number.

66110157822807 is a deficient number, since it is larger than the sum of its proper divisors (47820530277513).

66110157822807 is a wasteful number, since it uses less digits than its factorization.

66110157822807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443573 (or 4443563 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 66110157822807 in words is "sixty-six trillion, one hundred ten billion, one hundred fifty-seven million, eight hundred twenty-two thousand, eight hundred seven".