6706655641 has 4 divisors (see below), whose sum is σ = 7664749312. Its totient is φ = 5748561972.

The previous prime is 6706655639. The next prime is 6706655671. The reversal of 6706655641 is 1465566076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6706655641 - 2¹ = 6706655639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6706655591 and 6706655600.

It is not an unprimeable number, because it can be changed into a prime (6706655671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479046825 + ... + 479046838.

It is an arithmetic number, because the mean of its divisors is an integer number (1916187328).

Almost surely, 2^6706655641 is an apocalyptic number.

It is an amenable number.

6706655641 is a deficient number, since it is larger than the sum of its proper divisors (958093671).

6706655641 is an equidigital number, since it uses as much as digits as its factorization.

6706655641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958093670.

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 6706655641 is about 81894.1734252199. The cubic root of 6706655641 is about 1885.8276651578.

The spelling of 6706655641 in words is "six billion, seven hundred six million, six hundred fifty-five thousand, six hundred forty-one".