11161214403504 has 80 divisors (see below), whose sum is σ = 31522268112384. Its totient is φ = 3374881171200.

The previous prime is 11161214403503. The next prime is 11161214403541. The reversal of 11161214403504 is 40530441216111.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11161214403503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22583467 + ... + 23072394.

Almost surely, 2^{11161214403504} is an apocalyptic number.

It is an amenable number.

11161214403504 is an abundant number, since it is smaller than the sum of its proper divisors (20361053708880).

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

11161214403504 is a wasteful number, since it uses less digits than its factorization.

11161214403504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45656346 (or 45656340 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 11161214403504 its reverse (40530441216111), we get a palindrome (51691655619615).

The spelling of 11161214403504 in words is "eleven trillion, one hundred sixty-one billion, two hundred fourteen million, four hundred three thousand, five hundred four".