11154330549 has 6 divisors (see below), whose sum is σ = 16111810806. Its totient is φ = 7436220360.

The previous prime is 11154330433. The next prime is 11154330553. The reversal of 11154330549 is 94503345111.

It can be written as a sum of positive squares in only one way, i.e., 7249330449 + 3905000100 = 85143^2 + 62490^2 .

It is not a de Polignac number, because 11154330549 - 2⁸ = 11154330293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11154330559) 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, 619685022 + ... + 619685039.

It is an arithmetic number, because the mean of its divisors is an integer number (2685301801).

Almost surely, 2^11154330549 is an apocalyptic number.

It is an amenable number.

11154330549 is a deficient number, since it is larger than the sum of its proper divisors (4957480257).

11154330549 is a wasteful number, since it uses less digits than its factorization.

11154330549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239370067 (or 1239370064 counting only the distinct ones).

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

The spelling of 11154330549 in words is "eleven billion, one hundred fifty-four million, three hundred thirty thousand, five hundred forty-nine".