6686737201 has 2 divisors, whose sum is σ = 6686737202. Its totient is φ = 6686737200.

The previous prime is 6686737181. The next prime is 6686737207. The reversal of 6686737201 is 1027376866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3566956176 + 3119781025 = 59724^2 + 55855^2 .

It is a cyclic number.

It is not a de Polignac number, because 6686737201 - 2⁷ = 6686737073 is a prime.

It is not a weakly prime, because it can be changed into another prime (6686737207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3343368600 + 3343368601.

It is an arithmetic number, because the mean of its divisors is an integer number (3343368601).

Almost surely, 2^6686737201 is an apocalyptic number.

It is an amenable number.

6686737201 is a deficient number, since it is larger than the sum of its proper divisors (1).

6686737201 is an equidigital number, since it uses as much as digits as its factorization.

6686737201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 6686737201 is about 81772.4721468050. The cubic root of 6686737201 is about 1883.9588751479.

The spelling of 6686737201 in words is "six billion, six hundred eighty-six million, seven hundred thirty-seven thousand, two hundred one".