55168143908 has 12 divisors (see below), whose sum is σ = 96722710812. Its totient is φ = 27533083680.

The previous prime is 55168143893. The next prime is 55168143971. The reversal of 55168143908 is 80934186155.

It can be written as a sum of positive squares in 2 ways, for example, as 32964759844 + 22203384064 = 181562^2 + 149008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12744635 + ... + 12748962.

It is an arithmetic number, because the mean of its divisors is an integer number (8060225901).

Almost surely, 2^55168143908 is an apocalyptic number.

It is an amenable number.

55168143908 is a deficient number, since it is larger than the sum of its proper divisors (41554566904).

55168143908 is a wasteful number, since it uses less digits than its factorization.

55168143908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25494142 (or 25494140 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 55168143908 in words is "fifty-five billion, one hundred sixty-eight million, one hundred forty-three thousand, nine hundred eight".