55170387203358 has 16 divisors (see below), whose sum is σ = 126103742179200. Its totient is φ = 15762967772376.

The previous prime is 55170387203317. The next prime is 55170387203363. The reversal of 55170387203358 is 85330278307155.

It is a junction number, because it is equal to n+sod(n) for n = 55170387203298 and 55170387203307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656790323808 + ... + 656790323891.

It is an arithmetic number, because the mean of its divisors is an integer number (7881483886200).

Almost surely, 2^{55170387203358} is an apocalyptic number.

55170387203358 is an abundant number, since it is smaller than the sum of its proper divisors (70933354975842).

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

55170387203358 is a wasteful number, since it uses less digits than its factorization.

55170387203358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313580647711.

The product of its (nonzero) digits is 21168000, while the sum is 57.

The spelling of 55170387203358 in words is "fifty-five trillion, one hundred seventy billion, three hundred eighty-seven million, two hundred three thousand, three hundred fifty-eight".