163543234253446 has 16 divisors (see below), whose sum is σ = 248135582973600. Its totient is φ = 80831850187968.

The previous prime is 163543234253411. The next prime is 163543234253449. The reversal of 163543234253446 is 644352432345361.

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 7 ways as a sum of consecutive naturals, for example, 118543626 + ... + 119915293.

It is an arithmetic number, because the mean of its divisors is an integer number (15508473935850).

Almost surely, 2^{163543234253446} is an apocalyptic number.

163543234253446 is a deficient number, since it is larger than the sum of its proper divisors (84592348720154).

163543234253446 is a wasteful number, since it uses less digits than its factorization.

163543234253446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238462863.

The product of its digits is 74649600, while the sum is 55.

The spelling of 163543234253446 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-six".