1118583332161 has 3 divisors (see below), whose sum is σ = 1118584389793. Its totient is φ = 1118582274530.

The previous prime is 1118583332159. The next prime is 1118583332173. The reversal of 1118583332161 is 1612333858111.

The square root of 1118583332161 is 1057631.

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.

It is not a de Polignac number, because 1118583332161 - 2¹ = 1118583332159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1118583362161) 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, 528816 + ... + 1586446.

Almost surely, 2^{1118583332161} is an apocalyptic number.

1118583332161 is the 1057631-st square number.

1118583332161 is the 528816-th centered octagonal number.

It is an amenable number.

1118583332161 is a deficient number, since it is larger than the sum of its proper divisors (1057632).

1118583332161 is an frugal number, since it uses more digits than its factorization.

1118583332161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115262 (or 1057631 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The spelling of 1118583332161 in words is "one trillion, one hundred eighteen billion, five hundred eighty-three million, three hundred thirty-two thousand, one hundred sixty-one".