11155459401 has 20 divisors (see below), whose sum is σ = 16795558912. Its totient is φ = 7378407288.

The previous prime is 11155459391. The next prime is 11155459423. The reversal of 11155459401 is 10495455111.

It is a happy number.

11155459401 is a `hidden beast` number, since 1 + 1 + 15 + 54 + 594 + 0 + 1 = 666.

11155459401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11155459401 - 2⁵ = 11155459369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11155459001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 531925 + ... + 552498.

Almost surely, 2^11155459401 is an apocalyptic number.

It is an amenable number.

11155459401 is a deficient number, since it is larger than the sum of its proper divisors (5640099511).

11155459401 is a wasteful number, since it uses less digits than its factorization.

11155459401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084562 (or 1084553 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 36.

The spelling of 11155459401 in words is "eleven billion, one hundred fifty-five million, four hundred fifty-nine thousand, four hundred one".