666982134 has 64 divisors (see below), whose sum is σ = 1824238080. Its totient is φ = 175906080.

The previous prime is 666982117. The next prime is 666982139. The reversal of 666982134 is 431289666.

It is a self number, because there is not a number n which added to its sum of digits gives 666982134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666982139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62952 + ... + 72779.

It is an arithmetic number, because the mean of its divisors is an integer number (28503720).

Almost surely, 2^666982134 is an apocalyptic number.

666982134 is an abundant number, since it is smaller than the sum of its proper divisors (1157255946).

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

666982134 is a wasteful number, since it uses less digits than its factorization.

666982134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135762 (or 135756 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 666982134 is about 25825.9972508323. The cubic root of 666982134 is about 873.7182360572.

The spelling of 666982134 in words is "six hundred sixty-six million, nine hundred eighty-two thousand, one hundred thirty-four".