66165226110 has 32 divisors (see below), whose sum is σ = 176440603680. Its totient is φ = 17644060224.

The previous prime is 66165226069. The next prime is 66165226111. The reversal of 66165226110 is 1162256166.

66165226110 is a `hidden beast` number, since 6 + 6 + 16 + 5 + 22 + 611 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66165226111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122527927 + ... + 122528466.

It is an arithmetic number, because the mean of its divisors is an integer number (5513768865).

Almost surely, 2^66165226110 is an apocalyptic number.

66165226110 is an abundant number, since it is smaller than the sum of its proper divisors (110275377570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66165226110 is a wasteful number, since it uses less digits than its factorization.

66165226110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245056409 (or 245056403 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 66165226110 in words is "sixty-six billion, one hundred sixty-five million, two hundred twenty-six thousand, one hundred ten".