663125735065 has 8 divisors (see below), whose sum is σ = 795762817920. Its totient is φ = 530492630832.

The previous prime is 663125735057. The next prime is 663125735159. The reversal of 663125735065 is 560537521366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 663125735065 - 2³ = 663125735057 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 614785 + ... + 1305454.

It is an arithmetic number, because the mean of its divisors is an integer number (99470352240).

Almost surely, 2^663125735065 is an apocalyptic number.

It is an amenable number.

663125735065 is a deficient number, since it is larger than the sum of its proper divisors (132637082855).

663125735065 is a wasteful number, since it uses less digits than its factorization.

663125735065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989311.

The product of its (nonzero) digits is 3402000, while the sum is 49.

The spelling of 663125735065 in words is "six hundred sixty-three billion, one hundred twenty-five million, seven hundred thirty-five thousand, sixty-five".