630334666646 has 4 divisors (see below), whose sum is σ = 945501999972. Its totient is φ = 315167333322.

The previous prime is 630334666631. The next prime is 630334666657. The reversal of 630334666646 is 646666433036.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 157583666660 + ... + 157583666663.

It is an arithmetic number, because the mean of its divisors is an integer number (236375499993).

Almost surely, 2^630334666646 is an apocalyptic number.

630334666646 is a deficient number, since it is larger than the sum of its proper divisors (315167333326).

630334666646 is a wasteful number, since it uses less digits than its factorization.

630334666646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315167333325.

The product of its (nonzero) digits is 20155392, while the sum is 53.

The spelling of 630334666646 in words is "six hundred thirty billion, three hundred thirty-four million, six hundred sixty-six thousand, six hundred forty-six".