1118661441 has 16 divisors (see below), whose sum is σ = 1545931200. Its totient is φ = 718953408.

The previous prime is 1118661433. The next prime is 1118661463. The reversal of 1118661441 is 1441668111.

It is not a de Polignac number, because 1118661441 - 2³ = 1118661433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1118661491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34131 + ... + 58328.

It is an arithmetic number, because the mean of its divisors is an integer number (96620700).

Almost surely, 2^1118661441 is an apocalyptic number.

It is an amenable number.

1118661441 is a deficient number, since it is larger than the sum of its proper divisors (427269759).

1118661441 is a wasteful number, since it uses less digits than its factorization.

1118661441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92608.

The product of its digits is 4608, while the sum is 33.

The square root of 1118661441 is about 33446.3965323620. The cubic root of 1118661441 is about 1038.0849376035.

It can be divided in two parts, 11186 and 61441, that added together give a palindrome (72627).

The spelling of 1118661441 in words is "one billion, one hundred eighteen million, six hundred sixty-one thousand, four hundred forty-one".