12136254566 has 8 divisors (see below), whose sum is σ = 18995876784. Its totient is φ = 5804295640.

The previous prime is 12136254563. The next prime is 12136254583. The reversal of 12136254566 is 66545263121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12136254563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131915765 + ... + 131915856.

It is an arithmetic number, because the mean of its divisors is an integer number (2374484598).

Almost surely, 2^12136254566 is an apocalyptic number.

12136254566 is a deficient number, since it is larger than the sum of its proper divisors (6859622218).

12136254566 is a wasteful number, since it uses less digits than its factorization.

12136254566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263831646.

The product of its digits is 259200, while the sum is 41.

The spelling of 12136254566 in words is "twelve billion, one hundred thirty-six million, two hundred fifty-four thousand, five hundred sixty-six".