12013505553 has 16 divisors (see below), whose sum is σ = 18415918080. Its totient is φ = 6823751376.

The previous prime is 12013505527. The next prime is 12013505561. The reversal of 12013505553 is 35550531021.

It is not a de Polignac number, because 12013505553 - 2¹⁷ = 12013374481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12013505553.

It is not an unprimeable number, because it can be changed into a prime (12013509553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1709283 + ... + 1716296.

It is an arithmetic number, because the mean of its divisors is an integer number (1150994880).

Almost surely, 2^12013505553 is an apocalyptic number.

It is an amenable number.

12013505553 is a deficient number, since it is larger than the sum of its proper divisors (6402412527).

12013505553 is a wasteful number, since it uses less digits than its factorization.

12013505553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425756.

The product of its (nonzero) digits is 11250, while the sum is 30.

The spelling of 12013505553 in words is "twelve billion, thirteen million, five hundred five thousand, five hundred fifty-three".