66130441616045 has 8 divisors (see below), whose sum is σ = 79356669067800. Its totient is φ = 52904260540480.

The previous prime is 66130441616017. The next prime is 66130441616047. The reversal of 66130441616045 is 54061614403166.

It can be written as a sum of positive squares in 4 ways, for example, as 33915213800329 + 32215227815716 = 5823677^2 + 5675846^2 .

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

It is not a de Polignac number, because 66130441616045 - 2⁴⁴ = 48538255571629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66130441616047) 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, 8375726 + ... + 14227215.

It is an arithmetic number, because the mean of its divisors is an integer number (9919583633475).

Almost surely, 2^{66130441616045} is an apocalyptic number.

It is an amenable number.

66130441616045 is a deficient number, since it is larger than the sum of its proper divisors (13226227451755).

66130441616045 is a wasteful number, since it uses less digits than its factorization.

66130441616045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23188095.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 66130441616045 in words is "sixty-six trillion, one hundred thirty billion, four hundred forty-one million, six hundred sixteen thousand, forty-five".