11205432004555 has 16 divisors (see below), whose sum is σ = 13479778900224. Its totient is φ = 8942197511520.

The previous prime is 11205432004519. The next prime is 11205432004631. The reversal of 11205432004555 is 55540023450211.

It is not a de Polignac number, because 11205432004555 - 2²¹ = 11205429907403 is a prime.

It is a Duffinian 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, 1910242 + ... + 5104888.

It is an arithmetic number, because the mean of its divisors is an integer number (842486181264).

Almost surely, 2^{11205432004555} is an apocalyptic number.

11205432004555 is a deficient number, since it is larger than the sum of its proper divisors (2274346895669).

11205432004555 is a wasteful number, since it uses less digits than its factorization.

11205432004555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196386.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 11205432004555 its reverse (55540023450211), we get a palindrome (66745455454766).

The spelling of 11205432004555 in words is "eleven trillion, two hundred five billion, four hundred thirty-two million, four thousand, five hundred fifty-five".