12606548553 has 6 divisors (see below), whose sum is σ = 18209459034. Its totient is φ = 8404365696.

The previous prime is 12606548551. The next prime is 12606548587. The reversal of 12606548553 is 35584560621.

12606548553 is a `hidden beast` number, since 1 + 2 + 60 + 65 + 485 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11309684409 + 1296864144 = 106347^2 + 36012^2 .

It is not a de Polignac number, because 12606548553 - 2¹ = 12606548551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12606548499 and 12606548508.

It is not an unprimeable number, because it can be changed into a prime (12606548551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 700363800 + ... + 700363817.

It is an arithmetic number, because the mean of its divisors is an integer number (3034909839).

Almost surely, 2^12606548553 is an apocalyptic number.

It is an amenable number.

12606548553 is a deficient number, since it is larger than the sum of its proper divisors (5602910481).

12606548553 is a wasteful number, since it uses less digits than its factorization.

12606548553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400727623 (or 1400727620 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 12606548553 in words is "twelve billion, six hundred six million, five hundred forty-eight thousand, five hundred fifty-three".