170166400 has 96 divisors (see below), whose sum is σ = 430948980. Its totient is φ = 66355200.

The previous prime is 170166391. The next prime is 170166401. The reversal of 170166400 is 4661071.

It is a happy number.

170166400 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 75064896 + 95101504 = 8664^2 + 9752^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (170166401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130552 + ... + 131848.

Almost surely, 2^170166400 is an apocalyptic number.

170166400 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 170166400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215474490).

170166400 is an abundant number, since it is smaller than the sum of its proper divisors (260782580).

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

170166400 is a wasteful number, since it uses less digits than its factorization.

170166400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 170166400 is about 13044.7843983716. The cubic root of 170166400 is about 554.1465116633.

The spelling of 170166400 in words is "one hundred seventy million, one hundred sixty-six thousand, four hundred".