6656446435 has 4 divisors (see below), whose sum is σ = 7987735728. Its totient is φ = 5325157144.

The previous prime is 6656446427. The next prime is 6656446451. The reversal of 6656446435 is 5346446566.

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

It is a cyclic number.

It is not a de Polignac number, because 6656446435 - 2³ = 6656446427 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 665644639 + ... + 665644648.

It is an arithmetic number, because the mean of its divisors is an integer number (1996933932).

Almost surely, 2^6656446435 is an apocalyptic number.

6656446435 is a deficient number, since it is larger than the sum of its proper divisors (1331289293).

6656446435 is a wasteful number, since it uses less digits than its factorization.

6656446435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331289292.

The product of its digits is 6220800, while the sum is 49.

The square root of 6656446435 is about 81587.0482061951. The cubic root of 6656446435 is about 1881.1098052500.

The spelling of 6656446435 in words is "six billion, six hundred fifty-six million, four hundred forty-six thousand, four hundred thirty-five".