5500105510991 has 24 divisors (see below), whose sum is σ = 7076477241120. Its totient is φ = 4162526064576.

The previous prime is 5500105510969. The next prime is 5500105511009. The reversal of 5500105510991 is 1990155010055.

It is not a de Polignac number, because 5500105510991 - 2²² = 5500101316687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500105510901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57079196 + ... + 57175473.

It is an arithmetic number, because the mean of its divisors is an integer number (294853218380).

Almost surely, 2^{5500105510991} is an apocalyptic number.

5500105510991 is a deficient number, since it is larger than the sum of its proper divisors (1576371730129).

5500105510991 is a wasteful number, since it uses less digits than its factorization.

5500105510991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114254735 (or 114254712 counting only the distinct ones).

The product of its (nonzero) digits is 50625, while the sum is 41.

The spelling of 5500105510991 in words is "five trillion, five hundred billion, one hundred five million, five hundred ten thousand, nine hundred ninety-one".