66110253660011 has 4 divisors (see below), whose sum is σ = 72120276720024. Its totient is φ = 60100230600000.

The previous prime is 66110253659987. The next prime is 66110253660067. The reversal of 66110253660011 is 11006635201166.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66110253660011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66110253660811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3005011529990 + ... + 3005011530011.

It is an arithmetic number, because the mean of its divisors is an integer number (18030069180006).

Almost surely, 2^{66110253660011} is an apocalyptic number.

66110253660011 is a deficient number, since it is larger than the sum of its proper divisors (6010023060013).

66110253660011 is a wasteful number, since it uses less digits than its factorization.

66110253660011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010023060012.

The product of its (nonzero) digits is 38880, while the sum is 38.

Adding to 66110253660011 its reverse (11006635201166), we get a palindrome (77116888861177).

The spelling of 66110253660011 in words is "sixty-six trillion, one hundred ten billion, two hundred fifty-three million, six hundred sixty thousand, eleven".