11553044405406 has 32 divisors (see below), whose sum is σ = 26434154366208. Its totient is φ = 3297470364480.

The previous prime is 11553044405381. The next prime is 11553044405407. The reversal of 11553044405406 is 60450444035511.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553044405407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141603135 + ... + 141684698.

It is an arithmetic number, because the mean of its divisors is an integer number (826067323944).

Almost surely, 2^{11553044405406} is an apocalyptic number.

11553044405406 is an abundant number, since it is smaller than the sum of its proper divisors (14881109960802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11553044405406 is a wasteful number, since it uses less digits than its factorization.

11553044405406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283288816.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 11553044405406 in words is "eleven trillion, five hundred fifty-three billion, forty-four million, four hundred five thousand, four hundred six".