11155054445 has 16 divisors (see below), whose sum is σ = 13791913392. Its totient is φ = 8657487360.

The previous prime is 11155054433. The next prime is 11155054447. The reversal of 11155054445 is 54445055111.

It can be written as a sum of positive squares in 8 ways, for example, as 4924951684 + 6230102761 = 70178^2 + 78931^2 .

It is not a de Polignac number, because 11155054445 - 2⁶ = 11155054381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155054447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 228242 + ... + 272771.

It is an arithmetic number, because the mean of its divisors is an integer number (861994587).

Almost surely, 2^11155054445 is an apocalyptic number.

It is an amenable number.

11155054445 is a deficient number, since it is larger than the sum of its proper divisors (2636858947).

11155054445 is an equidigital number, since it uses as much as digits as its factorization.

11155054445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501152.

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 11155054445 in words is "eleven billion, one hundred fifty-five million, fifty-four thousand, four hundred forty-five".