66011110060612 has 6 divisors (see below), whose sum is σ = 115519442606078. Its totient is φ = 33005555030304.

The previous prime is 66011110060579. The next prime is 66011110060663. The reversal of 66011110060612 is 21606001111066.

It can be written as a sum of positive squares in only one way, i.e., 60270131131456 + 5740978929156 = 7763384^2 + 2396034^2 .

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, 8251388757573 + ... + 8251388757580.

Almost surely, 2^{66011110060612} is an apocalyptic number.

It is an amenable number.

66011110060612 is a deficient number, since it is larger than the sum of its proper divisors (49508332545466).

66011110060612 is a wasteful number, since it uses less digits than its factorization.

66011110060612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16502777515157 (or 16502777515155 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

Adding to 66011110060612 its reverse (21606001111066), we get a palindrome (87617111171678).

The spelling of 66011110060612 in words is "sixty-six trillion, eleven billion, one hundred ten million, sixty thousand, six hundred twelve".