11271745553 has 2 divisors, whose sum is σ = 11271745554. Its totient is φ = 11271745552.

The previous prime is 11271745523. The next prime is 11271745559. The reversal of 11271745553 is 35554717211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11258907664 + 12837889 = 106108^2 + 3583^2 .

It is a cyclic number.

It is not a de Polignac number, because 11271745553 - 2¹⁴ = 11271729169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11271745553.

It is not a weakly prime, because it can be changed into another prime (11271745559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5635872776 + 5635872777.

It is an arithmetic number, because the mean of its divisors is an integer number (5635872777).

Almost surely, 2^11271745553 is an apocalyptic number.

It is an amenable number.

11271745553 is a deficient number, since it is larger than the sum of its proper divisors (1).

11271745553 is an equidigital number, since it uses as much as digits as its factorization.

11271745553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147000, while the sum is 41.

The spelling of 11271745553 in words is "eleven billion, two hundred seventy-one million, seven hundred forty-five thousand, five hundred fifty-three".