66007060066 has 4 divisors (see below), whose sum is σ = 99010590102. Its totient is φ = 33003530032.

The previous prime is 66007060033. The next prime is 66007060081. The reversal of 66007060066 is 66006070066.

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., 65902591225 + 104468841 = 256715^2 + 10221^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16501765015 + ... + 16501765018.

Almost surely, 2^66007060066 is an apocalyptic number.

66007060066 is a deficient number, since it is larger than the sum of its proper divisors (33003530036).

66007060066 is a wasteful number, since it uses less digits than its factorization.

66007060066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33003530035.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 66007060066 in words is "sixty-six billion, seven million, sixty thousand, sixty-six".