12106152605546 has 4 divisors (see below), whose sum is σ = 18159228908322. Its totient is φ = 6053076302772.

The previous prime is 12106152605537. The next prime is 12106152605549. The reversal of 12106152605546 is 64550625160121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11712445299025 + 393707306521 = 3422345^2 + 627461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12106152605497 and 12106152605506.

It is not an unprimeable number, because it can be changed into a prime (12106152605549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3026538151385 + ... + 3026538151388.

Almost surely, 2^{12106152605546} is an apocalyptic number.

12106152605546 is a deficient number, since it is larger than the sum of its proper divisors (6053076302776).

12106152605546 is an equidigital number, since it uses as much as digits as its factorization.

12106152605546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6053076302775.

The product of its (nonzero) digits is 432000, while the sum is 44.

Adding to 12106152605546 its reverse (64550625160121), we get a palindrome (76656777765667).

The spelling of 12106152605546 in words is "twelve trillion, one hundred six billion, one hundred fifty-two million, six hundred five thousand, five hundred forty-six".