66704070441 has 32 divisors (see below), whose sum is σ = 90771056640. Its totient is φ = 43563744000.

The previous prime is 66704070437. The next prime is 66704070491. The reversal of 66704070441 is 14407040766.

It is a happy number.

It is not a de Polignac number, because 66704070441 - 2² = 66704070437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66704070441.

It is not an unprimeable number, because it can be changed into a prime (66704070401) 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 31 ways as a sum of consecutive naturals, for example, 45345336 + ... + 45346806.

It is an arithmetic number, because the mean of its divisors is an integer number (2836595520).

Almost surely, 2^66704070441 is an apocalyptic number.

It is an amenable number.

66704070441 is a deficient number, since it is larger than the sum of its proper divisors (24066986199).

66704070441 is a wasteful number, since it uses less digits than its factorization.

66704070441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 66704070441 in words is "sixty-six billion, seven hundred four million, seventy thousand, four hundred forty-one".