163456617223 has 2 divisors, whose sum is σ = 163456617224. Its totient is φ = 163456617222.

The previous prime is 163456617209. The next prime is 163456617241. The reversal of 163456617223 is 322716654361.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163456617223 - 2²¹ = 163454520071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163456617253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81728308611 + 81728308612.

It is an arithmetic number, because the mean of its divisors is an integer number (81728308612).

Almost surely, 2^163456617223 is an apocalyptic number.

163456617223 is a deficient number, since it is larger than the sum of its proper divisors (1).

163456617223 is an equidigital number, since it uses as much as digits as its factorization.

163456617223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 46.

The spelling of 163456617223 in words is "one hundred sixty-three billion, four hundred fifty-six million, six hundred seventeen thousand, two hundred twenty-three".