55216566105 has 32 divisors (see below), whose sum is σ = 88738934400. Its totient is φ = 29318188032.

The previous prime is 55216566089. The next prime is 55216566131. The reversal of 55216566105 is 50166561255.

It is not a de Polignac number, because 55216566105 - 2⁴ = 55216566089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6722241 + ... + 6730449.

It is an arithmetic number, because the mean of its divisors is an integer number (2773091700).

Almost surely, 2^55216566105 is an apocalyptic number.

It is an amenable number.

55216566105 is a deficient number, since it is larger than the sum of its proper divisors (33522368295).

55216566105 is a wasteful number, since it uses less digits than its factorization.

55216566105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153.

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 55216566105 in words is "fifty-five billion, two hundred sixteen million, five hundred sixty-six thousand, one hundred five".