170661168 has 100 divisors (see below), whose sum is σ = 507435280. Its totient is φ = 55334016.

The previous prime is 170661157. The next prime is 170661199. The reversal of 170661168 is 861166071.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46173 + ... + 49731.

Almost surely, 2^170661168 is an apocalyptic number.

170661168 is a gapful number since it is divisible by the number (18) 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 170661168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253717640).

170661168 is an abundant number, since it is smaller than the sum of its proper divisors (336774112).

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

170661168 is a wasteful number, since it uses less digits than its factorization.

170661168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 170661168 is about 13063.7348411547. The cubic root of 170661168 is about 554.6830622876.

The spelling of 170661168 in words is "one hundred seventy million, six hundred sixty-one thousand, one hundred sixty-eight".