66012655556041 has 8 divisors (see below), whose sum is σ = 67609975161344. Its totient is φ = 64418160567600.

The previous prime is 66012655556009. The next prime is 66012655556051. The reversal of 66012655556041 is 14065555621066.

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

It is a cyclic number.

It is not a de Polignac number, because 66012655556041 - 2⁵ = 66012655556009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66012655556041.

It is not an unprimeable number, because it can be changed into a prime (66012655556051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706106910 + ... + 706200391.

It is an arithmetic number, because the mean of its divisors is an integer number (8451246895168).

Almost surely, 2^{66012655556041} is an apocalyptic number.

It is an amenable number.

66012655556041 is a deficient number, since it is larger than the sum of its proper divisors (1597319605303).

66012655556041 is a wasteful number, since it uses less digits than its factorization.

66012655556041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412308431.

The product of its (nonzero) digits is 6480000, while the sum is 52.

The spelling of 66012655556041 in words is "sixty-six trillion, twelve billion, six hundred fifty-five million, five hundred fifty-six thousand, forty-one".