11553156449 has 8 divisors (see below), whose sum is σ = 11856768000. Its totient is φ = 11253138192.

The previous prime is 11553156437. The next prime is 11553156467. The reversal of 11553156449 is 94465135511.

It is a happy number.

11553156449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11553156449 - 2²⁰ = 11552107873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11553156469) 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 7 ways as a sum of consecutive naturals, for example, 891809 + ... + 904670.

It is an arithmetic number, because the mean of its divisors is an integer number (1482096000).

Almost surely, 2^11553156449 is an apocalyptic number.

It is an amenable number.

11553156449 is a deficient number, since it is larger than the sum of its proper divisors (303611551).

11553156449 is a wasteful number, since it uses less digits than its factorization.

11553156449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796647.

The product of its digits is 324000, while the sum is 44.

The spelling of 11553156449 in words is "eleven billion, five hundred fifty-three million, one hundred fifty-six thousand, four hundred forty-nine".