11503532553155 has 8 divisors (see below), whose sum is σ = 14530777962000. Its totient is φ = 8718466777056.

The previous prime is 11503532553127. The next prime is 11503532553157. The reversal of 11503532553155 is 55135523530511.

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 11503532553155 - 2⁸ = 11503532552899 is a prime.

It is a super-2 number, since 2×11503532553155² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11503532553157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60544908080 + ... + 60544908269.

It is an arithmetic number, because the mean of its divisors is an integer number (1816347245250).

Almost surely, 2^{11503532553155} is an apocalyptic number.

11503532553155 is a deficient number, since it is larger than the sum of its proper divisors (3027245408845).

11503532553155 is a wasteful number, since it uses less digits than its factorization.

11503532553155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121089816373.

The product of its (nonzero) digits is 843750, while the sum is 44.

The spelling of 11503532553155 in words is "eleven trillion, five hundred three billion, five hundred thirty-two million, five hundred fifty-three thousand, one hundred fifty-five".