212543234412663 has 96 divisors (see below), whose sum is σ = 359692620421120. Its totient is φ = 109265511168000.

The previous prime is 212543234412653. The next prime is 212543234412679. The reversal of 212543234412663 is 366214432345212.

It is a happy number.

It is not a de Polignac number, because 212543234412663 - 2¹⁷ = 212543234281591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212543234412643) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4510752018 + ... + 4510799136.

Almost surely, 2^{212543234412663} is an apocalyptic number.

212543234412663 is a deficient number, since it is larger than the sum of its proper divisors (147149386008457).

212543234412663 is a wasteful number, since it uses less digits than its factorization.

212543234412663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65549 (or 65538 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 48.

Adding to 212543234412663 its reverse (366214432345212), we get a palindrome (578757666757875).

The spelling of 212543234412663 in words is "two hundred twelve trillion, five hundred forty-three billion, two hundred thirty-four million, four hundred twelve thousand, six hundred sixty-three".