11154434056 has 8 divisors (see below), whose sum is σ = 20914563870. Its totient is φ = 5577217024.

The previous prime is 11154434033. The next prime is 11154434087. The reversal of 11154434056 is 65043445111.

It can be written as a sum of positive squares in only one way, i.e., 6669988900 + 4484445156 = 81670^2 + 66966^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11154434056² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697152121 + ... + 697152136.

Almost surely, 2^11154434056 is an apocalyptic number.

It is an amenable number.

11154434056 is a deficient number, since it is larger than the sum of its proper divisors (9760129814).

11154434056 is a wasteful number, since it uses less digits than its factorization.

11154434056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394304263 (or 1394304259 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 11154434056 its reverse (65043445111), we get a palindrome (76197879167).

The spelling of 11154434056 in words is "eleven billion, one hundred fifty-four million, four hundred thirty-four thousand, fifty-six".