5547128217455 has 24 divisors (see below), whose sum is σ = 7436654044512. Its totient is φ = 3968139384000.

The previous prime is 5547128217431. The next prime is 5547128217461.

5547128217455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5547128217455 - 2¹⁸ = 5547127955311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5547128217455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75117251 + ... + 75191060.

It is an arithmetic number, because the mean of its divisors is an integer number (309860585188).

Almost surely, 2^{5547128217455} is an apocalyptic number.

5547128217455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5547128217455 is a deficient number, since it is larger than the sum of its proper divisors (1889525827057).

5547128217455 is a wasteful number, since it uses less digits than its factorization.

5547128217455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150308399 (or 150308388 counting only the distinct ones).

The product of its digits is 15680000, while the sum is 56.

The spelling of 5547128217455 in words is "five trillion, five hundred forty-seven billion, one hundred twenty-eight million, two hundred seventeen thousand, four hundred fifty-five".