170189420244 has 24 divisors (see below), whose sum is σ = 397898141760. Its totient is φ = 56617021824.

The previous prime is 170189420243. The next prime is 170189420279. The reversal of 170189420244 is 442024981071.

It is a junction number, because it is equal to n+sod(n) for n = 170189420196 and 170189420205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170189420243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14091829 + ... + 14103900.

It is an arithmetic number, because the mean of its divisors is an integer number (16579089240).

Almost surely, 2^170189420244 is an apocalyptic number.

It is an amenable number.

170189420244 is an abundant number, since it is smaller than the sum of its proper divisors (227708721516).

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

170189420244 is a wasteful number, since it uses less digits than its factorization.

170189420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28196239 (or 28196237 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 170189420244 in words is "one hundred seventy billion, one hundred eighty-nine million, four hundred twenty thousand, two hundred forty-four".