6766405201 has 2 divisors, whose sum is σ = 6766405202. Its totient is φ = 6766405200.

The previous prime is 6766405199. The next prime is 6766405249. The reversal of 6766405201 is 1025046676.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5685310801 + 1081094400 = 75401^2 + 32880^2 .

It is a cyclic number.

It is not a de Polignac number, because 6766405201 - 2¹ = 6766405199 is a prime.

Together with 6766405199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6766405271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3383202600 + 3383202601.

It is an arithmetic number, because the mean of its divisors is an integer number (3383202601).

Almost surely, 2^6766405201 is an apocalyptic number.

It is an amenable number.

6766405201 is a deficient number, since it is larger than the sum of its proper divisors (1).

6766405201 is an equidigital number, since it uses as much as digits as its factorization.

6766405201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 6766405201 is about 82258.1619111441. The cubic root of 6766405201 is about 1891.4113923078.

The spelling of 6766405201 in words is "six billion, seven hundred sixty-six million, four hundred five thousand, two hundred one".