66711074401 has 8 divisors (see below), whose sum is σ = 71547131520. Its totient is φ = 62007512112.

The previous prime is 66711074377. The next prime is 66711074447. The reversal of 66711074401 is 10447011766.

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 66711074401 - 2²¹ = 66708977249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66711044401) 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, 33122665 + ... + 33124678.

It is an arithmetic number, because the mean of its divisors is an integer number (8943391440).

Almost surely, 2^66711074401 is an apocalyptic number.

It is an amenable number.

66711074401 is a deficient number, since it is larger than the sum of its proper divisors (4836057119).

66711074401 is a wasteful number, since it uses less digits than its factorization.

66711074401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66247415.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 66711074401 in words is "sixty-six billion, seven hundred eleven million, seventy-four thousand, four hundred one".