66113436064045 has 32 divisors (see below), whose sum is σ = 80252227440000. Its totient is φ = 52283596409856.

The previous prime is 66113436064009. The next prime is 66113436064051. The reversal of 66113436064045 is 54046063431166.

It is a cyclic number.

It is not a de Polignac number, because 66113436064045 - 2²¹ = 66113433966893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66113436064045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220449606 + ... + 220749304.

It is an arithmetic number, because the mean of its divisors is an integer number (2507882107500).

Almost surely, 2^{66113436064045} is an apocalyptic number.

It is an amenable number.

66113436064045 is a deficient number, since it is larger than the sum of its proper divisors (14138791375955).

66113436064045 is a wasteful number, since it uses less digits than its factorization.

66113436064045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301197.

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 66113436064045 in words is "sixty-six trillion, one hundred thirteen billion, four hundred thirty-six million, sixty-four thousand, forty-five".