11448405555 has 16 divisors (see below), whose sum is σ = 18908335104. Its totient is φ = 5908854240.

The previous prime is 11448405541. The next prime is 11448405581. The reversal of 11448405555 is 55550484411.

It is not a de Polignac number, because 11448405555 - 2⁴ = 11448405539 is a prime.

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, 12309649 + ... + 12310578.

It is an arithmetic number, because the mean of its divisors is an integer number (1181770944).

Almost surely, 2^11448405555 is an apocalyptic number.

11448405555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11448405555 is a deficient number, since it is larger than the sum of its proper divisors (7459929549).

11448405555 is a wasteful number, since it uses less digits than its factorization.

11448405555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24620266.

The product of its (nonzero) digits is 320000, while the sum is 42.

Adding to 11448405555 its reverse (55550484411), we get a palindrome (66998889966).

The spelling of 11448405555 in words is "eleven billion, four hundred forty-eight million, four hundred five thousand, five hundred fifty-five".