171352389380620 has 120 divisors (see below), whose sum is σ = 422302098111264. Its totient is φ = 58397595153408.

The previous prime is 171352389380611. The next prime is 171352389380657. The reversal of 171352389380620 is 26083983253171.

It is a happy number.

It is a super-2 number, since 2×171352389380620² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2664357 + ... + 18703036.

Almost surely, 2^{171352389380620} is an apocalyptic number.

171352389380620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171352389380620 is an abundant number, since it is smaller than the sum of its proper divisors (250949708730644).

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

171352389380620 is a wasteful number, since it uses less digits than its factorization.

171352389380620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21367597 (or 21367574 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 171352389380620 in words is "one hundred seventy-one trillion, three hundred fifty-two billion, three hundred eighty-nine million, three hundred eighty thousand, six hundred twenty".