12120156606 has 16 divisors (see below), whose sum is σ = 24327826704. Its totient is φ = 4025466624.

The previous prime is 12120156593. The next prime is 12120156611. The reversal of 12120156606 is 60665102121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3644595 + ... + 3647918.

It is an arithmetic number, because the mean of its divisors is an integer number (1520489169).

Almost surely, 2^12120156606 is an apocalyptic number.

12120156606 is an abundant number, since it is smaller than the sum of its proper divisors (12207670098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12120156606 is a wasteful number, since it uses less digits than its factorization.

12120156606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292795.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 12120156606 its reverse (60665102121), we get a palindrome (72785258727).

The spelling of 12120156606 in words is "twelve billion, one hundred twenty million, one hundred fifty-six thousand, six hundred six".