12157156606 has 8 divisors (see below), whose sum is σ = 20840839920. Its totient is φ = 5210209968.

The previous prime is 12157156601. The next prime is 12157156607. The reversal of 12157156606 is 60665175121.

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 (12157156601) 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 3 ways as a sum of consecutive naturals, for example, 434184151 + ... + 434184178.

It is an arithmetic number, because the mean of its divisors is an integer number (2605104990).

Almost surely, 2^12157156606 is an apocalyptic number.

12157156606 is a deficient number, since it is larger than the sum of its proper divisors (8683683314).

12157156606 is an equidigital number, since it uses as much as digits as its factorization.

12157156606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868368338.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 12157156606 in words is "twelve billion, one hundred fifty-seven million, one hundred fifty-six thousand, six hundred six".