2660565106 has 4 divisors (see below), whose sum is σ = 3990847662. Its totient is φ = 1330282552.

The previous prime is 2660565053. The next prime is 2660565113. The reversal of 2660565106 is 6015650662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1463751081 + 1196814025 = 38259^2 + 34595^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665141275 + ... + 665141278.

Almost surely, 2^2660565106 is an apocalyptic number.

2660565106 is a deficient number, since it is larger than the sum of its proper divisors (1330282556).

2660565106 is a wasteful number, since it uses less digits than its factorization.

2660565106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330282555.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 2660565106 is about 51580.6660096591. Note that the first 3 decimals coincide. The cubic root of 2660565106 is about 1385.6640945427.

The spelling of 2660565106 in words is "two billion, six hundred sixty million, five hundred sixty-five thousand, one hundred six".