55126527654665 has 4 divisors (see below), whose sum is σ = 66151833185604. Its totient is φ = 44101222123728.

The previous prime is 55126527654661. The next prime is 55126527654727. The reversal of 55126527654665 is 56645672562155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32069897454841 + 23056630199824 = 5663029^2 + 4801732^2 .

It is a cyclic number.

It is not a de Polignac number, because 55126527654665 - 2² = 55126527654661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55126527654661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5512652765462 + ... + 5512652765471.

It is an arithmetic number, because the mean of its divisors is an integer number (16537958296401).

Almost surely, 2^{55126527654665} is an apocalyptic number.

It is an amenable number.

55126527654665 is a deficient number, since it is larger than the sum of its proper divisors (11025305530939).

55126527654665 is a wasteful number, since it uses less digits than its factorization.

55126527654665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11025305530938.

The product of its digits is 453600000, while the sum is 65.

The spelling of 55126527654665 in words is "fifty-five trillion, one hundred twenty-six billion, five hundred twenty-seven million, six hundred fifty-four thousand, six hundred sixty-five".