11556533323154 has 16 divisors (see below), whose sum is σ = 17581086469440. Its totient is φ = 5696190929520.

The previous prime is 11556533323123. The next prime is 11556533323157. The reversal of 11556533323154 is 45132333565511.

It is a junction number, because it is equal to n+sod(n) for n = 11556533323099 and 11556533323108.

It is not an unprimeable number, because it can be changed into a prime (11556533323157) 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, 3766049 + ... + 6107060.

It is an arithmetic number, because the mean of its divisors is an integer number (1098817904340).

Almost surely, 2^{11556533323154} is an apocalyptic number.

11556533323154 is a deficient number, since it is larger than the sum of its proper divisors (6024553146286).

11556533323154 is an equidigital number, since it uses as much as digits as its factorization.

11556533323154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881425.

The product of its digits is 2430000, while the sum is 47.

Adding to 11556533323154 its reverse (45132333565511), we get a palindrome (56688866888665).

The spelling of 11556533323154 in words is "eleven trillion, five hundred fifty-six billion, five hundred thirty-three million, three hundred twenty-three thousand, one hundred fifty-four".