171059996836 has 27 divisors (see below), whose sum is σ = 301009965067. Its totient is φ = 85059742040.

The previous prime is 171059996747. The next prime is 171059996839. The reversal of 171059996836 is 638699950171.

It is a happy number.

The square root of 171059996836 is 413594.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171059996839) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 187771221 + ... + 187772131.

Almost surely, 2^171059996836 is an apocalyptic number.

171059996836 is the 413594-th square number.

It is an amenable number.

171059996836 is a deficient number, since it is larger than the sum of its proper divisors (129949968231).

171059996836 is an frugal number, since it uses more digits than its factorization.

171059996836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 64.

Multiplying 171059996836 by its sum of digits (64), we get a square (10947839797504 = 3308752²).

The spelling of 171059996836 in words is "one hundred seventy-one billion, fifty-nine million, nine hundred ninety-six thousand, eight hundred thirty-six".