666708334 has 8 divisors (see below), whose sum is σ = 1012721760. Its totient is φ = 329134416.

The previous prime is 666708313. The next prime is 666708403. The reversal of 666708334 is 433807666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2109679 + ... + 2109994.

It is an arithmetic number, because the mean of its divisors is an integer number (126590220).

Almost surely, 2^666708334 is an apocalyptic number.

666708334 is a deficient number, since it is larger than the sum of its proper divisors (346013426).

666708334 is a wasteful number, since it uses less digits than its factorization.

666708334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219754.

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 666708334 is about 25820.6958465491. The cubic root of 666708334 is about 873.5986642414.

It can be divided in two parts, 66670 and 8334, that multiplied together give a triangular number (555627780 = T₃₃₃₃₅).

The spelling of 666708334 in words is "six hundred sixty-six million, seven hundred eight thousand, three hundred thirty-four".