118082264161 has 3 divisors (see below), whose sum is σ = 118082607793. Its totient is φ = 118081920530.

The previous prime is 118082264137. The next prime is 118082264213. The reversal of 118082264161 is 161462280811.

The square root of 118082264161 is 343631.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 161462280811 = 13 ⋅12420175447.

It is not a de Polignac number, because 118082264161 - 2¹¹ = 118082262113 is a prime.

It is a super-2 number, since 2×118082264161² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118082264761) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 171816 + ... + 515446.

Almost surely, 2^118082264161 is an apocalyptic number.

118082264161 is the 343631-st square number.

118082264161 is the 171816-th centered octagonal number.

It is an amenable number.

118082264161 is a deficient number, since it is larger than the sum of its proper divisors (343632).

118082264161 is an frugal number, since it uses more digits than its factorization.

118082264161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687262 (or 343631 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 118082264161 in words is "one hundred eighteen billion, eighty-two million, two hundred sixty-four thousand, one hundred sixty-one".