6402664201 has 2 divisors, whose sum is σ = 6402664202. Its totient is φ = 6402664200.

The previous prime is 6402664193. The next prime is 6402664231. The reversal of 6402664201 is 1024662046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5419904400 + 982759801 = 73620^2 + 31349^2 .

It is a cyclic number.

It is not a de Polignac number, because 6402664201 - 2³ = 6402664193 is a prime.

It is not a weakly prime, because it can be changed into another prime (6402664231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201332100 + 3201332101.

It is an arithmetic number, because the mean of its divisors is an integer number (3201332101).

Almost surely, 2^6402664201 is an apocalyptic number.

It is an amenable number.

6402664201 is a deficient number, since it is larger than the sum of its proper divisors (1).

6402664201 is an equidigital number, since it uses as much as digits as its factorization.

6402664201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 6402664201 is about 80016.6495237085. The cubic root of 6402664201 is about 1856.8931253218.

The spelling of 6402664201 in words is "six billion, four hundred two million, six hundred sixty-four thousand, two hundred one".