55163160540 has 192 divisors, whose sum is σ = 176033088000. Its totient is φ = 14332746240.

The previous prime is 55163160491. The next prime is 55163160589. The reversal of 55163160540 is 4506136155.

55163160540 is a `hidden beast` number, since 5 + 5 + 1 + 6 + 3 + 1 + 605 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (55163160491) and next prime (55163160589).

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 = 55163160495 and 55163160504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27873271 + ... + 27875249.

It is an arithmetic number, because the mean of its divisors is an integer number (916839000).

Almost surely, 2^55163160540 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 55163160540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88016544000).

55163160540 is an abundant number, since it is smaller than the sum of its proper divisors (120869927460).

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

55163160540 is a wasteful number, since it uses less digits than its factorization.

55163160540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297 (or 3289 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 55163160540 its reverse (4506136155), we get a palindrome (59669296695).

It can be divided in two parts, 551631 and 60540, that added together give a triangular number (612171 = T₁₁₀₆).

The spelling of 55163160540 in words is "fifty-five billion, one hundred sixty-three million, one hundred sixty thousand, five hundred forty".