11520055455 has 16 divisors (see below), whose sum is σ = 18614587104. Its totient is φ = 6083196800.

The previous prime is 11520055427. The next prime is 11520055489. The reversal of 11520055455 is 55455002511.

It is not a de Polignac number, because 11520055455 - 2⁸ = 11520055199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3800484 + ... + 3803513.

It is an arithmetic number, because the mean of its divisors is an integer number (1163411694).

Almost surely, 2^11520055455 is an apocalyptic number.

11520055455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11520055455 is a deficient number, since it is larger than the sum of its proper divisors (7094531649).

11520055455 is a wasteful number, since it uses less digits than its factorization.

11520055455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7604106.

The product of its (nonzero) digits is 25000, while the sum is 33.

Adding to 11520055455 its reverse (55455002511), we get a palindrome (66975057966).

The spelling of 11520055455 in words is "eleven billion, five hundred twenty million, fifty-five thousand, four hundred fifty-five".