12106327656 has 64 divisors (see below), whose sum is σ = 31600005120. Its totient is φ = 3857754560.

The previous prime is 12106327637. The next prime is 12106327661. The reversal of 12106327656 is 65672360121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1133461 + ... + 1144091.

It is an arithmetic number, because the mean of its divisors is an integer number (493750080).

Almost surely, 2^12106327656 is an apocalyptic number.

It is an amenable number.

12106327656 is an abundant number, since it is smaller than the sum of its proper divisors (19493677464).

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

12106327656 is a wasteful number, since it uses less digits than its factorization.

12106327656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12726 (or 12722 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

Adding to 12106327656 its reverse (65672360121), we get a palindrome (77778687777).

The spelling of 12106327656 in words is "twelve billion, one hundred six million, three hundred twenty-seven thousand, six hundred fifty-six".