171157664 has 48 divisors (see below), whose sum is σ = 345941568. Its totient is φ = 83331072.

The previous prime is 171157639. The next prime is 171157669. The reversal of 171157664 is 466751171.

171157664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (171157669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207557 + ... + 208379.

It is an arithmetic number, because the mean of its divisors is an integer number (7207116).

Almost surely, 2^171157664 is an apocalyptic number.

It is an amenable number.

171157664 is an abundant number, since it is smaller than the sum of its proper divisors (174783904).

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

171157664 is an equidigital number, since it uses as much as digits as its factorization.

171157664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 989 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 171157664 is about 13082.7238754015. The cubic root of 171157664 is about 555.2204453931.

The spelling of 171157664 in words is "one hundred seventy-one million, one hundred fifty-seven thousand, six hundred sixty-four".