630806193663 has 8 divisors (see below), whose sum is σ = 841090325376. Its totient is φ = 420529762200.

The previous prime is 630806193643. The next prime is 630806193673. The reversal of 630806193663 is 366391608036.

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

It is not a de Polignac number, because 630806193663 - 2⁶ = 630806193599 is a prime.

It is a super-2 number, since 2×630806193663² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630806193623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1731123 + ... + 2063588.

It is an arithmetic number, because the mean of its divisors is an integer number (105136290672).

Almost surely, 2^630806193663 is an apocalyptic number.

630806193663 is a deficient number, since it is larger than the sum of its proper divisors (210284131713).

630806193663 is a wasteful number, since it uses less digits than its factorization.

630806193663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850125.

The product of its (nonzero) digits is 2519424, while the sum is 51.

The spelling of 630806193663 in words is "six hundred thirty billion, eight hundred six million, one hundred ninety-three thousand, six hundred sixty-three".