12541651105 has 8 divisors (see below), whose sum is σ = 15052711464. Its totient is φ = 10031500800.

The previous prime is 12541651103. The next prime is 12541651139. The reversal of 12541651105 is 50115614521.

It can be written as a sum of positive squares in 4 ways, for example, as 9296401 + 12532354704 = 3049^2 + 111948^2 .

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

It is not a de Polignac number, because 12541651105 - 2¹ = 12541651103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12541651103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196816 + ... + 252625.

It is an arithmetic number, because the mean of its divisors is an integer number (1881588933).

Almost surely, 2^12541651105 is an apocalyptic number.

It is an amenable number.

12541651105 is a deficient number, since it is larger than the sum of its proper divisors (2511060359).

12541651105 is an equidigital number, since it uses as much as digits as its factorization.

12541651105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455027.

The product of its (nonzero) digits is 6000, while the sum is 31.

The spelling of 12541651105 in words is "twelve billion, five hundred forty-one million, six hundred fifty-one thousand, one hundred five".