55223161706645 has 8 divisors (see below), whose sum is σ = 66269395393080. Its totient is φ = 44177461801920.

The previous prime is 55223161706623. The next prime is 55223161706677. The reversal of 55223161706645 is 54660716132255.

It can be written as a sum of positive squares in 4 ways, for example, as 3376839913924 + 51846321792721 = 1837618^2 + 7200439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55223161706645 - 2¹⁴ = 55223161690261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133217786 + ... + 133631675.

It is an arithmetic number, because the mean of its divisors is an integer number (8283674424135).

Almost surely, 2^{55223161706645} is an apocalyptic number.

It is an amenable number.

55223161706645 is a deficient number, since it is larger than the sum of its proper divisors (11046233686435).

55223161706645 is a wasteful number, since it uses less digits than its factorization.

55223161706645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266890855.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 55223161706645 in words is "fifty-five trillion, two hundred twenty-three billion, one hundred sixty-one million, seven hundred six thousand, six hundred forty-five".