55550899726336 has 192 divisors, whose sum is σ = 133758348796800. Its totient is φ = 22531768123392.

The previous prime is 55550899726303. The next prime is 55550899726339. The reversal of 55550899726336 is 63362799805555.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55550899726339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271464570 + ... + 271669126.

It is an arithmetic number, because the mean of its divisors is an integer number (696658066650).

Almost surely, 2^{55550899726336} is an apocalyptic number.

55550899726336 is a gapful number since it is divisible by the number (56) 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 55550899726336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66879174398400).

55550899726336 is an abundant number, since it is smaller than the sum of its proper divisors (78207449070464).

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

55550899726336 is a wasteful number, since it uses less digits than its factorization.

55550899726336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205602 (or 205582 counting only the distinct ones).

The product of its (nonzero) digits is 1837080000, while the sum is 73.

The spelling of 55550899726336 in words is "fifty-five trillion, five hundred fifty billion, eight hundred ninety-nine million, seven hundred twenty-six thousand, three hundred thirty-six".