66052500073 has 8 divisors (see below), whose sum is σ = 76266804992. Its totient is φ = 56032753536.

The previous prime is 66052500071. The next prime is 66052500097. The reversal of 66052500073 is 37000525066.

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 66052500073 - 2¹ = 66052500071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66052500071) 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, 48638865 + ... + 48640222.

It is an arithmetic number, because the mean of its divisors is an integer number (9533350624).

Almost surely, 2^66052500073 is an apocalyptic number.

It is an amenable number.

66052500073 is a deficient number, since it is larger than the sum of its proper divisors (10214304919).

66052500073 is an equidigital number, since it uses as much as digits as its factorization.

66052500073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97279191.

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 66052500073 in words is "sixty-six billion, fifty-two million, five hundred thousand, seventy-three".