6700000066 has 4 divisors (see below), whose sum is σ = 10050000102. Its totient is φ = 3350000032.

The previous prime is 6700000037. The next prime is 6700000081. The reversal of 6700000066 is 6600000076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6653828041 + 46172025 = 81571^2 + 6795^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1675000015 + ... + 1675000018.

Almost surely, 2^6700000066 is an apocalyptic number.

6700000066 is a deficient number, since it is larger than the sum of its proper divisors (3350000036).

6700000066 is a wasteful number, since it uses less digits than its factorization.

6700000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350000035.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 6700000066 is about 81853.5281218837. The cubic root of 6700000066 is about 1885.2036372112.

The spelling of 6700000066 in words is "six billion, seven hundred million, sixty-six", and thus it is an aban number.