666134422845774 has 16 divisors (see below), whose sum is σ = 1357405993724112. Its totient is φ = 217855282943168.

The previous prime is 666134422845719. The next prime is 666134422845781. The reversal of 666134422845774 is 477548224431666.

666134422845774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 666134422845699 and 666134422845708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047381167679 + ... + 1047381168314.

It is an arithmetic number, because the mean of its divisors is an integer number (84837874607757).

Almost surely, 2^{666134422845774} is an apocalyptic number.

666134422845774 is an abundant number, since it is smaller than the sum of its proper divisors (691271570878338).

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

666134422845774 is a wasteful number, since it uses less digits than its factorization.

666134422845774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094762336051.

The product of its digits is 1300561920, while the sum is 69.

The spelling of 666134422845774 in words is "six hundred sixty-six trillion, one hundred thirty-four billion, four hundred twenty-two million, eight hundred forty-five thousand, seven hundred seventy-four".