12230642561605 has 48 divisors (see below), whose sum is σ = 16194531871440. Its totient is φ = 8860312141824.

The previous prime is 12230642561603. The next prime is 12230642561617. The reversal of 12230642561605 is 50616524603221.

It can be written as a sum of positive squares in 24 ways, for example, as 8730925774596 + 3499716787009 = 2954814^2 + 1870753^2 .

It is not a de Polignac number, because 12230642561605 - 2¹ = 12230642561603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230642561603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 527421351 + ... + 527444539.

It is an arithmetic number, because the mean of its divisors is an integer number (337386080655).

Almost surely, 2^{12230642561605} is an apocalyptic number.

It is an amenable number.

12230642561605 is a deficient number, since it is larger than the sum of its proper divisors (3963889309835).

12230642561605 is a wasteful number, since it uses less digits than its factorization.

12230642561605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35050 (or 35037 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 12230642561605 in words is "twelve trillion, two hundred thirty billion, six hundred forty-two million, five hundred sixty-one thousand, six hundred five".