162716231161 has 9 divisors (see below), whose sum is σ = 178858255429. Its totient is φ = 147919812700.

The previous prime is 162716231159. The next prime is 162716231177. The reversal of 162716231161 is 161132617261.

The square root of 162716231161 is 403381.

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

It is not a de Polignac number, because 162716231161 - 2¹ = 162716231159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162716231161.

It is not an unprimeable number, because it can be changed into a prime (162716231131) 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, 4418856 + ... + 4455526.

Almost surely, 2^162716231161 is an apocalyptic number.

162716231161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

162716231161 is the 403381-st square number.

162716231161 is the 201691-st centered octagonal number.

It is an amenable number.

162716231161 is a deficient number, since it is larger than the sum of its proper divisors (16142024268).

162716231161 is an frugal number, since it uses more digits than its factorization.

162716231161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73364 (or 36682 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The spelling of 162716231161 in words is "one hundred sixty-two billion, seven hundred sixteen million, two hundred thirty-one thousand, one hundred sixty-one".