6346804661 has 2 divisors, whose sum is σ = 6346804662. Its totient is φ = 6346804660.

The previous prime is 6346804613. The next prime is 6346804697. The reversal of 6346804661 is 1664086436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5832376900 + 514427761 = 76370^2 + 22681^2 .

It is a cyclic number.

It is not a de Polignac number, because 6346804661 - 2¹⁴ = 6346788277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6340804661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3173402330 + 3173402331.

It is an arithmetic number, because the mean of its divisors is an integer number (3173402331).

Almost surely, 2^6346804661 is an apocalyptic number.

It is an amenable number.

6346804661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6346804661 is an equidigital number, since it uses as much as digits as its factorization.

6346804661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 6346804661 is about 79666.8353896400. The cubic root of 6346804661 is about 1851.4772385079.

The spelling of 6346804661 in words is "six billion, three hundred forty-six million, eight hundred four thousand, six hundred sixty-one".