55612066320 has 240 divisors, whose sum is σ = 193988208960. Its totient is φ = 14806374912.

The previous prime is 55612066319. The next prime is 55612066333. The reversal of 55612066320 is 2366021655.

It is a happy number.

55612066320 is a `hidden beast` number, since 5 + 5 + 6 + 12 + 0 + 6 + 632 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14714191 + ... + 14717969.

It is an arithmetic number, because the mean of its divisors is an integer number (808284204).

Almost surely, 2^55612066320 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 55612066320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96994104480).

55612066320 is an abundant number, since it is smaller than the sum of its proper divisors (138376142640).

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

55612066320 is a wasteful number, since it uses less digits than its factorization.

55612066320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564 (or 4546 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 55612066320 its reverse (2366021655), we get a palindrome (57978087975).

The spelling of 55612066320 in words is "fifty-five billion, six hundred twelve million, sixty-six thousand, three hundred twenty".