55106116505 has 16 divisors (see below), whose sum is σ = 76382383104. Its totient is φ = 37719694080.

The previous prime is 55106116501. The next prime is 55106116523. The reversal of 55106116505 is 50561160155.

55106116505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55106116505 - 2² = 55106116501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55106116501) 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, 29467577 + ... + 29469446.

It is an arithmetic number, because the mean of its divisors is an integer number (4773898944).

Almost surely, 2^55106116505 is an apocalyptic number.

55106116505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55106116505 is a deficient number, since it is larger than the sum of its proper divisors (21276266599).

55106116505 is a wasteful number, since it uses less digits than its factorization.

55106116505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58937056.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 55106116505 in words is "fifty-five billion, one hundred six million, one hundred sixteen thousand, five hundred five".