161173644253463 has 2 divisors, whose sum is σ = 161173644253464. Its totient is φ = 161173644253462.

The previous prime is 161173644253411. The next prime is 161173644253469. The reversal of 161173644253463 is 364352446371161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161173644253463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161173644253399 and 161173644253408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161173644253469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80586822126731 + 80586822126732.

It is an arithmetic number, because the mean of its divisors is an integer number (80586822126732).

Almost surely, 2^{161173644253463} is an apocalyptic number.

161173644253463 is a deficient number, since it is larger than the sum of its proper divisors (1).

161173644253463 is an equidigital number, since it uses as much as digits as its factorization.

161173644253463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 56.

The spelling of 161173644253463 in words is "one hundred sixty-one trillion, one hundred seventy-three billion, six hundred forty-four million, two hundred fifty-three thousand, four hundred sixty-three".