163446653210123 has 2 divisors, whose sum is σ = 163446653210124. Its totient is φ = 163446653210122.

The previous prime is 163446653210101. The next prime is 163446653210149. The reversal of 163446653210123 is 321012356644361.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (321012356644361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163446653210123 is a prime.

It is a super-2 number, since 2×163446653210123² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (163446653210723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81723326605061 + 81723326605062.

It is an arithmetic number, because the mean of its divisors is an integer number (81723326605062).

Almost surely, 2^{163446653210123} is an apocalyptic number.

163446653210123 is a deficient number, since it is larger than the sum of its proper divisors (1).

163446653210123 is an equidigital number, since it uses as much as digits as its factorization.

163446653210123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 163446653210123 in words is "one hundred sixty-three trillion, four hundred forty-six billion, six hundred fifty-three million, two hundred ten thousand, one hundred twenty-three".