666035334 has 72 divisors (see below), whose sum is σ = 1524355560. Its totient is φ = 210139776.

The previous prime is 666035317. The next prime is 666035339. The reversal of 666035334 is 433530666.

It is a happy number.

666035334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×666035334² = 887206132272983112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666035339) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1075677 + ... + 1076295.

It is an arithmetic number, because the mean of its divisors is an integer number (21171605).

Almost surely, 2^666035334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666035334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762177780).

666035334 is an abundant number, since it is smaller than the sum of its proper divisors (858320226).

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

666035334 is a wasteful number, since it uses less digits than its factorization.

666035334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

The square root of 666035334 is about 25807.6603743927. The cubic root of 666035334 is about 873.3046177002.

The spelling of 666035334 in words is "six hundred sixty-six million, thirty-five thousand, three hundred thirty-four".