6661600034 has 16 divisors (see below), whose sum is σ = 10342867320. Its totient is φ = 3214108800.

The previous prime is 6661600007. The next prime is 6661600067. The reversal of 6661600034 is 4300061666.

It can be written as a sum of positive squares in 4 ways, for example, as 2755725025 + 3905875009 = 52495^2 + 62497^2 .

It is a Curzon number.

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 in 7 ways as a sum of consecutive naturals, for example, 72572 + ... + 136344.

Almost surely, 2^6661600034 is an apocalyptic number.

6661600034 is a deficient number, since it is larger than the sum of its proper divisors (3681267286).

6661600034 is a wasteful number, since it uses less digits than its factorization.

6661600034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65605.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 6661600034 is about 81618.6255336366. The cubic root of 6661600034 is about 1881.5951485370.

The spelling of 6661600034 in words is "six billion, six hundred sixty-one million, six hundred thousand, thirty-four".