66263843325 has 12 divisors (see below), whose sum is σ = 109556221088. Its totient is φ = 35340716400.

The previous prime is 66263843311. The next prime is 66263843377. The reversal of 66263843325 is 52334836266.

It is not a de Polignac number, because 66263843325 - 2¹⁰ = 66263842301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441758881 + ... + 441759030.

Almost surely, 2^66263843325 is an apocalyptic number.

It is an amenable number.

66263843325 is a deficient number, since it is larger than the sum of its proper divisors (43292377763).

66263843325 is a wasteful number, since it uses less digits than its factorization.

66263843325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883517924 (or 883517919 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 48.

The spelling of 66263843325 in words is "sixty-six billion, two hundred sixty-three million, eight hundred forty-three thousand, three hundred twenty-five".