55065155165655 has 16 divisors (see below), whose sum is σ = 88565527056384. Its totient is φ = 29214323157920.

The previous prime is 55065155165653. The next prime is 55065155165659. The reversal of 55065155165655 is 55656155156055.

It is a happy number.

It is not a de Polignac number, because 55065155165655 - 2¹ = 55065155165653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55065155165653) 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, 9609971859 + ... + 9609977588.

It is an arithmetic number, because the mean of its divisors is an integer number (5535345441024).

Almost surely, 2^{55065155165655} is an apocalyptic number.

55065155165655 is a deficient number, since it is larger than the sum of its proper divisors (33500371890729).

55065155165655 is a wasteful number, since it uses less digits than its factorization.

55065155165655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19219949646.

The product of its (nonzero) digits is 84375000, while the sum is 60.

The spelling of 55065155165655 in words is "fifty-five trillion, sixty-five billion, one hundred fifty-five million, one hundred sixty-five thousand, six hundred fifty-five".