55065155165664 has 96 divisors (see below), whose sum is σ = 165289704894720. Its totient is φ = 15723926295552.

The previous prime is 55065155165659. The next prime is 55065155165687. The reversal of 55065155165664 is 46656155156055.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 55065155165598 and 55065155165607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22193974 + ... + 24550005.

It is an arithmetic number, because the mean of its divisors is an integer number (1721767759320).

Almost surely, 2^{55065155165664} is an apocalyptic number.

It is an amenable number.

55065155165664 is an abundant number, since it is smaller than the sum of its proper divisors (110224549729056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55065155165664 is a wasteful number, since it uses less digits than its factorization.

55065155165664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46745752 (or 46745744 counting only the distinct ones).

The product of its (nonzero) digits is 81000000, while the sum is 60.

The spelling of 55065155165664 in words is "fifty-five trillion, sixty-five billion, one hundred fifty-five million, one hundred sixty-five thousand, six hundred sixty-four".