55881659067 has 64 divisors (see below), whose sum is σ = 82715566080. Its totient is φ = 33347718144.

The previous prime is 55881659063. The next prime is 55881659077. The reversal of 55881659067 is 76095618855.

It is not a de Polignac number, because 55881659067 - 2² = 55881659063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55881659067.

It is not an unprimeable number, because it can be changed into a prime (55881659063) by changing a digit.

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, 82542733 + ... + 82543409.

It is an arithmetic number, because the mean of its divisors is an integer number (1292430720).

Almost surely, 2^55881659067 is an apocalyptic number.

55881659067 is a deficient number, since it is larger than the sum of its proper divisors (26833907013).

55881659067 is a wasteful number, since it uses less digits than its factorization.

55881659067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 18144000, while the sum is 60.

The spelling of 55881659067 in words is "fifty-five billion, eight hundred eighty-one million, six hundred fifty-nine thousand, sixty-seven".