55022120665216 has 96 divisors (see below), whose sum is σ = 116983432539900. Its totient is φ = 25688866258944.

The previous prime is 55022120665163. The next prime is 55022120665283. The reversal of 55022120665216 is 61256602122055.

It can be written as a sum of positive squares in 2 ways, for example, as 41035298574400 + 13986822090816 = 6405880^2 + 3739896^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34312840 + ... + 35880568.

Almost surely, 2^{55022120665216} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55022120665216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58491716269950).

55022120665216 is an abundant number, since it is smaller than the sum of its proper divisors (61961311874684).

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

55022120665216 is a wasteful number, since it uses less digits than its factorization.

55022120665216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568014 (or 1567875 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 55022120665216 in words is "fifty-five trillion, twenty-two billion, one hundred twenty million, six hundred sixty-five thousand, two hundred sixteen".