55116166511 has 16 divisors (see below), whose sum is σ = 66328796160. Its totient is φ = 44740032480.

The previous prime is 55116166507. The next prime is 55116166529. The reversal of 55116166511 is 11566161155.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55116166511 - 2² = 55116166507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55116166561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308090 + ... + 452936.

It is an arithmetic number, because the mean of its divisors is an integer number (4145549760).

Almost surely, 2^55116166511 is an apocalyptic number.

55116166511 is a deficient number, since it is larger than the sum of its proper divisors (11212629649).

55116166511 is a wasteful number, since it uses less digits than its factorization.

55116166511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147734.

The product of its digits is 27000, while the sum is 38.

The spelling of 55116166511 in words is "fifty-five billion, one hundred sixteen million, one hundred sixty-six thousand, five hundred eleven".