2661432236 has 6 divisors (see below), whose sum is σ = 4657506420. Its totient is φ = 1330716116.

The previous prime is 2661432227. The next prime is 2661432247. The reversal of 2661432236 is 6322341662.

It is a junction number, because it is equal to n+sod(n) for n = 2661432196 and 2661432205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332679026 + ... + 332679033.

It is an arithmetic number, because the mean of its divisors is an integer number (776251070).

Almost surely, 2^2661432236 is an apocalyptic number.

It is an amenable number.

2661432236 is a deficient number, since it is larger than the sum of its proper divisors (1996074184).

2661432236 is a wasteful number, since it uses less digits than its factorization.

2661432236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665358063 (or 665358061 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 2661432236 is about 51589.0708968479. The cubic root of 2661432236 is about 1385.8146164990.

Adding to 2661432236 its reverse (6322341662), we get a palindrome (8983773898).

The spelling of 2661432236 in words is "two billion, six hundred sixty-one million, four hundred thirty-two thousand, two hundred thirty-six".