11057117553 has 12 divisors (see below), whose sum is σ = 16006968900. Its totient is φ = 7354991616.

The previous prime is 11057117531. The next prime is 11057117557. The reversal of 11057117553 is 35571175011.

11057117553 is a `hidden beast` number, since 1 + 10 + 571 + 1 + 75 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8377191729 + 2679925824 = 91527^2 + 51768^2 .

It is not a de Polignac number, because 11057117553 - 2⁵ = 11057117521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11057117557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1364076 + ... + 1372157.

It is an arithmetic number, because the mean of its divisors is an integer number (1333914075).

Almost surely, 2^11057117553 is an apocalyptic number.

It is an amenable number.

11057117553 is a deficient number, since it is larger than the sum of its proper divisors (4949851347).

11057117553 is a wasteful number, since it uses less digits than its factorization.

11057117553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736688 (or 2736685 counting only the distinct ones).

The product of its (nonzero) digits is 18375, while the sum is 36.

The spelling of 11057117553 in words is "eleven billion, fifty-seven million, one hundred seventeen thousand, five hundred fifty-three".