666705002 has 8 divisors (see below), whose sum is σ = 1043538336. Its totient is φ = 318858892.

The previous prime is 666705001. The next prime is 666705019. The reversal of 666705002 is 200507666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 666705002.

It is not an unprimeable number, because it can be changed into a prime (666705001) 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 3 ways as a sum of consecutive naturals, for example, 7246748 + ... + 7246839.

It is an arithmetic number, because the mean of its divisors is an integer number (130442292).

Almost surely, 2^666705002 is an apocalyptic number.

666705002 is a deficient number, since it is larger than the sum of its proper divisors (376833334).

666705002 is a wasteful number, since it uses less digits than its factorization.

666705002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14493612.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 666705002 is about 25820.6313245823. The cubic root of 666705002 is about 873.5972089145.

The spelling of 666705002 in words is "six hundred sixty-six million, seven hundred five thousand, two".