170201157166 has 4 divisors (see below), whose sum is σ = 255301735752. Its totient is φ = 85100578582.

The previous prime is 170201157121. The next prime is 170201157169. The reversal of 170201157166 is 661751102071.

It is a happy number.

170201157166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170201157169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42550289290 + ... + 42550289293.

It is an arithmetic number, because the mean of its divisors is an integer number (63825433938).

Almost surely, 2^170201157166 is an apocalyptic number.

170201157166 is a deficient number, since it is larger than the sum of its proper divisors (85100578586).

170201157166 is an equidigital number, since it uses as much as digits as its factorization.

170201157166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85100578585.

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 170201157166 in words is "one hundred seventy billion, two hundred one million, one hundred fifty-seven thousand, one hundred sixty-six".