55142229168 has 80 divisors (see below), whose sum is σ = 170453916640. Its totient is φ = 16966838016.

The previous prime is 55142229139. The next prime is 55142229209. The reversal of 55142229168 is 86192224155.

55142229168 is a `hidden beast` number, since 551 + 4 + 2 + 2 + 2 + 91 + 6 + 8 = 666.

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 15 ways as a sum of consecutive naturals, for example, 4903771 + ... + 4915002.

It is an arithmetic number, because the mean of its divisors is an integer number (2130673958).

Almost surely, 2^55142229168 is an apocalyptic number.

It is an amenable number.

55142229168 is an abundant number, since it is smaller than the sum of its proper divisors (115311687472).

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

55142229168 is a wasteful number, since it uses less digits than its factorization.

55142229168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9818803 (or 9818791 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The spelling of 55142229168 in words is "fifty-five billion, one hundred forty-two million, two hundred twenty-nine thousand, one hundred sixty-eight".