163543234253447 has 16 divisors (see below), whose sum is σ = 165159776846592. Its totient is φ = 161928347011200.

The previous prime is 163543234253411. The next prime is 163543234253449. The reversal of 163543234253447 is 744352432345361.

It is a cyclic number.

It is not a de Polignac number, because 163543234253447 - 2⁴⁰ = 162443722625671 is a prime.

It is a super-4 number, since 4×163543234253447⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163543234253392 and 163543234253401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163543234253449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1559715572 + ... + 1559820422.

It is an arithmetic number, because the mean of its divisors is an integer number (10322486052912).

Almost surely, 2^{163543234253447} is an apocalyptic number.

163543234253447 is a deficient number, since it is larger than the sum of its proper divisors (1616542593145).

163543234253447 is a wasteful number, since it uses less digits than its factorization.

163543234253447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112598.

The product of its digits is 87091200, while the sum is 56.

The spelling of 163543234253447 in words is "one hundred sixty-three trillion, five hundred forty-three billion, two hundred thirty-four million, two hundred fifty-three thousand, four hundred forty-seven".