12240543699 has 6 divisors (see below), whose sum is σ = 17680785356. Its totient is φ = 8160362460.

The previous prime is 12240543691. The next prime is 12240543703. The reversal of 12240543699 is 99634504221.

12240543699 is a `hidden beast` number, since 1 + 2 + 2 + 40 + 543 + 69 + 9 = 666.

It is not a de Polignac number, because 12240543699 - 2³ = 12240543691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12240543691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 680030197 + ... + 680030214.

Almost surely, 2^12240543699 is an apocalyptic number.

12240543699 is a deficient number, since it is larger than the sum of its proper divisors (5440241657).

12240543699 is a wasteful number, since it uses less digits than its factorization.

12240543699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360060417 (or 1360060414 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 12240543699 in words is "twelve billion, two hundred forty million, five hundred forty-three thousand, six hundred ninety-nine".