66771041104003 has 4 divisors (see below), whose sum is σ = 66833854878448. Its totient is φ = 66708227329560.

The previous prime is 66771041103983. The next prime is 66771041104057. The reversal of 66771041104003 is 30040114017766.

66771041104003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66771041104003 - 2⁹ = 66771041103491 is a prime.

It is a super-2 number, since 2×66771041104003² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66771041108003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31406885628 + ... + 31406887753.

It is an arithmetic number, because the mean of its divisors is an integer number (16708463719612).

Almost surely, 2^{66771041104003} is an apocalyptic number.

66771041104003 is a deficient number, since it is larger than the sum of its proper divisors (62813774445).

66771041104003 is a wasteful number, since it uses less digits than its factorization.

66771041104003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62813774444.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 66771041104003 in words is "sixty-six trillion, seven hundred seventy-one billion, forty-one million, one hundred four thousand, three".