66072117048001 has 4 divisors (see below), whose sum is σ = 66072338183104. Its totient is φ = 66071895912900.

The previous prime is 66072117047987. The next prime is 66072117048019. The reversal of 66072117048001 is 10084071127066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66072117048001 - 2²⁵ = 66072083493569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66072117048061) 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, 110118765 + ... + 110717146.

It is an arithmetic number, because the mean of its divisors is an integer number (16518084545776).

Almost surely, 2^{66072117048001} is an apocalyptic number.

It is an amenable number.

66072117048001 is a deficient number, since it is larger than the sum of its proper divisors (221135103).

66072117048001 is a wasteful number, since it uses less digits than its factorization.

66072117048001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221135102.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 66072117048001 in words is "sixty-six trillion, seventy-two billion, one hundred seventeen million, forty-eight thousand, one".