55323126144 has 768 divisors, whose sum is σ = 197112960000. Its totient is φ = 15138938880.

The previous prime is 55323126137. The next prime is 55323126191. The reversal of 55323126144 is 44162132355.

55323126144 is a `hidden beast` number, since 5 + 5 + 3 + 2 + 31 + 2 + 614 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55323126099 and 55323126108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 507551562 + ... + 507551670.

It is an arithmetic number, because the mean of its divisors is an integer number (256657500).

Almost surely, 2^55323126144 is an apocalyptic number.

55323126144 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55323126144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98556480000).

55323126144 is an abundant number, since it is smaller than the sum of its proper divisors (141789833856).

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

55323126144 is a wasteful number, since it uses less digits than its factorization.

55323126144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 217 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 55323126144 its reverse (44162132355), we get a palindrome (99485258499).

The spelling of 55323126144 in words is "fifty-five billion, three hundred twenty-three million, one hundred twenty-six thousand, one hundred forty-four".