630051663 has 4 divisors (see below), whose sum is σ = 840068888. Its totient is φ = 420034440.

The previous prime is 630051563. The next prime is 630051677. The reversal of 630051663 is 366150036.

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

It is not a de Polignac number, because 630051663 - 2⁹ = 630051151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630051663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630051683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105008608 + ... + 105008613.

It is an arithmetic number, because the mean of its divisors is an integer number (210017222).

Almost surely, 2^630051663 is an apocalyptic number.

630051663 is a deficient number, since it is larger than the sum of its proper divisors (210017225).

630051663 is a wasteful number, since it uses less digits than its factorization.

630051663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210017224.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 630051663 is about 25100.8299265184. The cubic root of 630051663 is about 857.2853207765.

The spelling of 630051663 in words is "six hundred thirty million, fifty-one thousand, six hundred sixty-three".