17420174255220 has 192 divisors, whose sum is σ = 56343638486016. Its totient is φ = 3974453176320.

The previous prime is 17420174255219. The next prime is 17420174255233. The reversal of 17420174255220 is 2255247102471.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 389838999 + ... + 389883681.

It is an arithmetic number, because the mean of its divisors is an integer number (293456450448).

Almost surely, 2^{17420174255220} is an apocalyptic number.

17420174255220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17420174255220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28171819243008).

17420174255220 is an abundant number, since it is smaller than the sum of its proper divisors (38923464230796).

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

17420174255220 is a wasteful number, since it uses less digits than its factorization.

17420174255220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79470 (or 79468 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 42.

The spelling of 17420174255220 in words is "seventeen trillion, four hundred twenty billion, one hundred seventy-four million, two hundred fifty-five thousand, two hundred twenty".