163221015410423 has 2 divisors, whose sum is σ = 163221015410424. Its totient is φ = 163221015410422.

The previous prime is 163221015410363. The next prime is 163221015410501. The reversal of 163221015410423 is 324014510122361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163221015410423 - 2⁶ = 163221015410359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163221015410923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81610507705211 + 81610507705212.

It is an arithmetic number, because the mean of its divisors is an integer number (81610507705212).

Almost surely, 2^{163221015410423} is an apocalyptic number.

163221015410423 is a deficient number, since it is larger than the sum of its proper divisors (1).

163221015410423 is an equidigital number, since it uses as much as digits as its factorization.

163221015410423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 163221015410423 its reverse (324014510122361), we get a palindrome (487235525532784).

The spelling of 163221015410423 in words is "one hundred sixty-three trillion, two hundred twenty-one billion, fifteen million, four hundred ten thousand, four hundred twenty-three".