55444144144455 has 64 divisors (see below), whose sum is σ = 107761287997440. Its totient is φ = 26823696566400.

The previous prime is 55444144144393. The next prime is 55444144144511.

It is a happy number.

55444144144455 is a `hidden beast` number, since 5 + 5 + 4 + 4 + 4 + 1 + 44 + 144 + 455 = 666.

55444144144455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55444144144455 - 2¹⁸ = 55444143882311 is a prime.

It is a super-2 number, since 2×55444144144455² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 39810127 + ... + 41179296.

It is an arithmetic number, because the mean of its divisors is an integer number (1683770124960).

Almost surely, 2^{55444144144455} is an apocalyptic number.

55444144144455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55444144144455 is a deficient number, since it is larger than the sum of its proper divisors (52317143852985).

55444144144455 is a wasteful number, since it uses less digits than its factorization.

55444144144455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80989909 (or 80989903 counting only the distinct ones).

The product of its digits is 40960000, while the sum is 54.

It can be divided in two parts, 5544414 and 4144455, that added together give a palindrome (9688869).

The spelling of 55444144144455 in words is "fifty-five trillion, four hundred forty-four billion, one hundred forty-four million, one hundred forty-four thousand, four hundred fifty-five".