12006205658 has 8 divisors (see below), whose sum is σ = 18012908928. Its totient is φ = 6001902684.

The previous prime is 12006205619. The next prime is 12006205661. The reversal of 12006205658 is 85650260021.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587516 + ... + 607607.

It is an arithmetic number, because the mean of its divisors is an integer number (2251613616).

Almost surely, 2^12006205658 is an apocalyptic number.

12006205658 is a deficient number, since it is larger than the sum of its proper divisors (6006703270).

12006205658 is a wasteful number, since it uses less digits than its factorization.

12006205658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200148.

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 12006205658 its reverse (85650260021), we get a palindrome (97656465679).

The spelling of 12006205658 in words is "twelve billion, six million, two hundred five thousand, six hundred fifty-eight".