609700066 has 8 divisors (see below), whose sum is σ = 916094124. Its totient is φ = 304335360.

The previous prime is 609700057. The next prime is 609700073. The reversal of 609700066 is 660007906.

It can be written as a sum of positive squares in 2 ways, for example, as 596776041 + 12924025 = 24429^2 + 3595^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255855 + ... + 258226.

Almost surely, 2^609700066 is an apocalyptic number.

609700066 is a deficient number, since it is larger than the sum of its proper divisors (306394058).

609700066 is a wasteful number, since it uses less digits than its factorization.

609700066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514676.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 609700066 is about 24692.1053375365. The cubic root of 609700066 is about 847.9535850723.

The spelling of 609700066 in words is "six hundred nine million, seven hundred thousand, sixty-six".