55500561116 has 192 divisors, whose sum is σ = 138096645120. Its totient is φ = 18795939840.

The previous prime is 55500561091. The next prime is 55500561133. The reversal of 55500561116 is 61116500555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13159040 + ... + 13163256.

It is an arithmetic number, because the mean of its divisors is an integer number (719253360).

Almost surely, 2^55500561116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55500561116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69048322560).

55500561116 is an abundant number, since it is smaller than the sum of its proper divisors (82596084004).

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

55500561116 is a wasteful number, since it uses less digits than its factorization.

55500561116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444 (or 4442 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

It can be divided in two parts, 55500 and 561116, that added together give a palindrome (616616).

The spelling of 55500561116 in words is "fifty-five billion, five hundred million, five hundred sixty-one thousand, one hundred sixteen".