5518448448155 has 16 divisors (see below), whose sum is σ = 6803804377440. Its totient is φ = 4295190746112.

The previous prime is 5518448448151. The next prime is 5518448448157.

5518448448155 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 5518448448155 - 2² = 5518448448151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5518448448151) 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, 96397184 + ... + 96454413.

It is an arithmetic number, because the mean of its divisors is an integer number (425237773590).

Almost surely, 2^{5518448448155} is an apocalyptic number.

5518448448155 is a deficient number, since it is larger than the sum of its proper divisors (1285355929285).

5518448448155 is a wasteful number, since it uses less digits than its factorization.

5518448448155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192851758.

The product of its digits is 81920000, while the sum is 62.

The spelling of 5518448448155 in words is "five trillion, five hundred eighteen billion, four hundred forty-eight million, four hundred forty-eight thousand, one hundred fifty-five".