11554165543442 has 16 divisors (see below), whose sum is σ = 17939105265240. Its totient is φ = 5574691070592.

The previous prime is 11554165543367. The next prime is 11554165543451. The reversal of 11554165543442 is 24434556145511.

It can be written as a sum of positive squares in 4 ways, for example, as 7185568109281 + 4368597434161 = 2680591^2 + 2090119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56717993 + ... + 56921340.

Almost surely, 2^{11554165543442} is an apocalyptic number.

11554165543442 is a deficient number, since it is larger than the sum of its proper divisors (6384939721798).

11554165543442 is a wasteful number, since it uses less digits than its factorization.

11554165543442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113641117.

The product of its digits is 5760000, while the sum is 50.

The spelling of 11554165543442 in words is "eleven trillion, five hundred fifty-four billion, one hundred sixty-five million, five hundred forty-three thousand, four hundred forty-two".