55533350168855 has 16 divisors (see below), whose sum is σ = 73705801973664. Its totient is φ = 39900885275520.

The previous prime is 55533350168851. The next prime is 55533350168893. The reversal of 55533350168855 is 55886105333555.

It is not a de Polignac number, because 55533350168855 - 2² = 55533350168851 is a prime.

It is a super-2 number, since 2×55533350168855² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55533350168851) 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, 11545392641 + ... + 11545397450.

It is an arithmetic number, because the mean of its divisors is an integer number (4606612623354).

Almost surely, 2^{55533350168855} is an apocalyptic number.

55533350168855 is a deficient number, since it is larger than the sum of its proper divisors (18172451804809).

55533350168855 is a wasteful number, since it uses less digits than its factorization.

55533350168855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23090790146.

The product of its (nonzero) digits is 162000000, while the sum is 62.

The spelling of 55533350168855 in words is "fifty-five trillion, five hundred thirty-three billion, three hundred fifty million, one hundred sixty-eight thousand, eight hundred fifty-five".