55386855186870 has 32 divisors (see below), whose sum is σ = 140747773182048. Its totient is φ = 13901014635008.

The previous prime is 55386855186827. The next prime is 55386855186937. The reversal of 55386855186870 is 7868155868355.

It is a happy number.

55386855186870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55386855186792 and 55386855186801.

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 15 ways as a sum of consecutive naturals, for example, 54300837909 + ... + 54300838928.

It is an arithmetic number, because the mean of its divisors is an integer number (4398367911939).

Almost surely, 2^{55386855186870} is an apocalyptic number.

55386855186870 is an abundant number, since it is smaller than the sum of its proper divisors (85360917995178).

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

55386855186870 is a wasteful number, since it uses less digits than its factorization.

55386855186870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108601676864.

The product of its (nonzero) digits is 1935360000, while the sum is 75.

The spelling of 55386855186870 in words is "fifty-five trillion, three hundred eighty-six billion, eight hundred fifty-five million, one hundred eighty-six thousand, eight hundred seventy".