163221426063 has 12 divisors (see below), whose sum is σ = 239629271128. Its totient is φ = 107030442960.

The previous prime is 163221426059. The next prime is 163221426077. The reversal of 163221426063 is 360624122361.

163221426063 is a `hidden beast` number, since 1 + 6 + 3 + 2 + 2 + 1 + 42 + 606 + 3 = 666.

It is not a de Polignac number, because 163221426063 - 2² = 163221426059 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 (163221426463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148652845 + ... + 148653942.

Almost surely, 2^163221426063 is an apocalyptic number.

163221426063 is a deficient number, since it is larger than the sum of its proper divisors (76407845065).

163221426063 is a wasteful number, since it uses less digits than its factorization.

163221426063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297306854 (or 297306851 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 163221426063 in words is "one hundred sixty-three billion, two hundred twenty-one million, four hundred twenty-six thousand, sixty-three".