66124081206 has 48 divisors (see below), whose sum is σ = 143937091584. Its totient is φ = 21938699952.

The previous prime is 66124081189. The next prime is 66124081207. The reversal of 66124081206 is 60218042166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66124081207) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6181995 + ... + 6192681.

It is an arithmetic number, because the mean of its divisors is an integer number (2998689408).

Almost surely, 2^66124081206 is an apocalyptic number.

66124081206 is an abundant number, since it is smaller than the sum of its proper divisors (77813010378).

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

66124081206 is a wasteful number, since it uses less digits than its factorization.

66124081206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12265 (or 12262 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 66124081206 in words is "sixty-six billion, one hundred twenty-four million, eighty-one thousand, two hundred six".