630044666642 has 8 divisors (see below), whose sum is σ = 945279054396. Its totient is φ = 314951648512.

The previous prime is 630044666639. The next prime is 630044666683. The reversal of 630044666642 is 246666440036.

It can be written as a sum of positive squares in 2 ways, for example, as 490169414641 + 139875252001 = 700121^2 + 373999^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35331263 + ... + 35349090.

Almost surely, 2^630044666642 is an apocalyptic number.

630044666642 is a deficient number, since it is larger than the sum of its proper divisors (315234387754).

630044666642 is a wasteful number, since it uses less digits than its factorization.

630044666642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70684812.

The product of its (nonzero) digits is 2985984, while the sum is 47.

The spelling of 630044666642 in words is "six hundred thirty billion, forty-four million, six hundred sixty-six thousand, six hundred forty-two".