66410577673 has 16 divisors (see below), whose sum is σ = 76718444544. Its totient is φ = 56815292160.

The previous prime is 66410577587. The next prime is 66410577733. The reversal of 66410577673 is 37677501466.

It is not a de Polignac number, because 66410577673 - 2¹³ = 66410569481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66410577673.

It is not an unprimeable number, because it can be changed into a prime (66410587673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2281336 + ... + 2310262.

It is an arithmetic number, because the mean of its divisors is an integer number (4794902784).

Almost surely, 2^66410577673 is an apocalyptic number.

It is an amenable number.

66410577673 is a deficient number, since it is larger than the sum of its proper divisors (10307866871).

66410577673 is a wasteful number, since it uses less digits than its factorization.

66410577673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41232.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 66410577673 in words is "sixty-six billion, four hundred ten million, five hundred seventy-seven thousand, six hundred seventy-three".