6656369739 has 8 divisors (see below), whose sum is σ = 9181199760. Its totient is φ = 4284559776.

The previous prime is 6656369683. The next prime is 6656369749. The reversal of 6656369739 is 9379636566.

6656369739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6656369739 - 2²⁰ = 6655321163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6656369749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38254912 + ... + 38255085.

It is an arithmetic number, because the mean of its divisors is an integer number (1147649970).

Almost surely, 2^6656369739 is an apocalyptic number.

6656369739 is a deficient number, since it is larger than the sum of its proper divisors (2524830021).

6656369739 is a wasteful number, since it uses less digits than its factorization.

6656369739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76510029.

The product of its digits is 33067440, while the sum is 60.

The square root of 6656369739 is about 81586.5781792569. The cubic root of 6656369739 is about 1881.1025804666.

The spelling of 6656369739 in words is "six billion, six hundred fifty-six million, three hundred sixty-nine thousand, seven hundred thirty-nine".