170492728320 has 264 divisors, whose sum is σ = 591528042144. Its totient is φ = 45405093888.

The previous prime is 170492728319. The next prime is 170492728327. The reversal of 170492728320 is 23827294071.

170492728320 is a `hidden beast` number, since 1 + 70 + 492 + 72 + 8 + 3 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170492728327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43635807 + ... + 43639713.

Almost surely, 2^170492728320 is an apocalyptic number.

170492728320 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 170492728320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295764021072).

170492728320 is an abundant number, since it is smaller than the sum of its proper divisors (421035313824).

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

170492728320 is a wasteful number, since it uses less digits than its factorization.

170492728320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4885 (or 4864 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 170492728320 in words is "one hundred seventy billion, four hundred ninety-two million, seven hundred twenty-eight thousand, three hundred twenty".