234661353543 has 24 divisors (see below), whose sum is σ = 344733143040. Its totient is φ = 153774706320.

The previous prime is 234661353533. The next prime is 234661353623. The reversal of 234661353543 is 345353166432.

234661353543 is a `hidden beast` number, since 2 + 3 + 4 + 66 + 13 + 535 + 43 = 666.

It is not a de Polignac number, because 234661353543 - 2¹⁶ = 234661288007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234661353533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10525498 + ... + 10547768.

It is an arithmetic number, because the mean of its divisors is an integer number (14363880960).

Almost surely, 2^234661353543 is an apocalyptic number.

234661353543 is a deficient number, since it is larger than the sum of its proper divisors (110071789497).

234661353543 is a wasteful number, since it uses less digits than its factorization.

234661353543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42179 (or 42176 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 45.

It can be divided in two parts, 2346 and 61353543, that added together give a square (61355889 = 7833²).

The spelling of 234661353543 in words is "two hundred thirty-four billion, six hundred sixty-one million, three hundred fifty-three thousand, five hundred forty-three".