11166533541 has 24 divisors (see below), whose sum is σ = 16469144640. Its totient is φ = 7289194176.

The previous prime is 11166533537. The next prime is 11166533569. The reversal of 11166533541 is 14533566111.

11166533541 is a `hidden beast` number, since 1 + 1 + 1 + 66 + 53 + 3 + 541 = 666.

It is not a de Polignac number, because 11166533541 - 2² = 11166533537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11166533496 and 11166533505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11166533501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14830 + ... + 150176.

It is an arithmetic number, because the mean of its divisors is an integer number (686214360).

Almost surely, 2^11166533541 is an apocalyptic number.

It is an amenable number.

11166533541 is a deficient number, since it is larger than the sum of its proper divisors (5302611099).

11166533541 is a wasteful number, since it uses less digits than its factorization.

11166533541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135545 (or 135542 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The spelling of 11166533541 in words is "eleven billion, one hundred sixty-six million, five hundred thirty-three thousand, five hundred forty-one".