55534216140 has 192 divisors, whose sum is σ = 187315632000. Its totient is φ = 13577960448.

The previous prime is 55534216093. The next prime is 55534216223. The reversal of 55534216140 is 4161243555.

55534216140 is a `hidden beast` number, since 5 + 5 + 5 + 34 + 2 + 1 + 614 + 0 = 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 = 55534216095 and 55534216104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1019434 + ... + 1072526.

It is an arithmetic number, because the mean of its divisors is an integer number (975602250).

Almost surely, 2^55534216140 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 55534216140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93657816000).

55534216140 is an abundant number, since it is smaller than the sum of its proper divisors (131781415860).

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

55534216140 is a wasteful number, since it uses less digits than its factorization.

55534216140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53273 (or 53265 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 55534216140 its reverse (4161243555), we get a palindrome (59695459695).

The spelling of 55534216140 in words is "fifty-five billion, five hundred thirty-four million, two hundred sixteen thousand, one hundred forty".