666741346734 has 32 divisors (see below), whose sum is σ = 1348550739360. Its totient is φ = 219736090112.

The previous prime is 666741346729. The next prime is 666741346741. The reversal of 666741346734 is 437643147666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11707312 + ... + 11764124.

It is an arithmetic number, because the mean of its divisors is an integer number (42142210605).

Almost surely, 2^666741346734 is an apocalyptic number.

666741346734 is an abundant number, since it is smaller than the sum of its proper divisors (681809392626).

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

666741346734 is a wasteful number, since it uses less digits than its factorization.

666741346734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78884.

The product of its digits is 36578304, while the sum is 57.

The spelling of 666741346734 in words is "six hundred sixty-six billion, seven hundred forty-one million, three hundred forty-six thousand, seven hundred thirty-four".