660002745773 has 4 divisors (see below), whose sum is σ = 754288852320. Its totient is φ = 565716639228.

The previous prime is 660002745763. The next prime is 660002745781. The reversal of 660002745773 is 377547200066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 660002745773 - 2²² = 659998551469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660002745763) 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, 47143053263 + ... + 47143053276.

It is an arithmetic number, because the mean of its divisors is an integer number (188572213080).

Almost surely, 2^660002745773 is an apocalyptic number.

It is an amenable number.

660002745773 is a deficient number, since it is larger than the sum of its proper divisors (94286106547).

660002745773 is an equidigital number, since it uses as much as digits as its factorization.

660002745773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94286106546.

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 660002745773 in words is "six hundred sixty billion, two million, seven hundred forty-five thousand, seven hundred seventy-three".