163630251063 has 16 divisors (see below), whose sum is σ = 255173881600. Its totient is φ = 103345421400.

The previous prime is 163630251017. The next prime is 163630251067. The reversal of 163630251063 is 360152036361.

163630251063 is a `hidden beast` number, since 1 + 6 + 3 + 630 + 2 + 5 + 10 + 6 + 3 = 666.

It is not a de Polignac number, because 163630251063 - 2⁶ = 163630250999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163630251067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159483163 + ... + 159484188.

It is an arithmetic number, because the mean of its divisors is an integer number (15948367600).

Almost surely, 2^163630251063 is an apocalyptic number.

163630251063 is a deficient number, since it is larger than the sum of its proper divisors (91543630537).

163630251063 is a wasteful number, since it uses less digits than its factorization.

163630251063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318967379 (or 318967373 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The spelling of 163630251063 in words is "one hundred sixty-three billion, six hundred thirty million, two hundred fifty-one thousand, sixty-three".