12105156415641 has 8 divisors (see below), whose sum is σ = 16140293526144. Its totient is φ = 8070061791120.

The previous prime is 12105156415631. The next prime is 12105156415643. The reversal of 12105156415641 is 14651465150121.

It is a happy number.

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

It is not a de Polignac number, because 12105156415641 - 2²¹ = 12105154318489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12105156415593 and 12105156415602.

It is not an unprimeable number, because it can be changed into a prime (12105156415643) 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, 9950625 + ... + 11100686.

It is an arithmetic number, because the mean of its divisors is an integer number (2017536690768).

Almost surely, 2^{12105156415641} is an apocalyptic number.

It is an amenable number.

12105156415641 is a deficient number, since it is larger than the sum of its proper divisors (4035137110503).

12105156415641 is a wasteful number, since it uses less digits than its factorization.

12105156415641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21242991.

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 12105156415641 in words is "twelve trillion, one hundred five billion, one hundred fifty-six million, four hundred fifteen thousand, six hundred forty-one".