1626650065349 has 2 divisors, whose sum is σ = 1626650065350. Its totient is φ = 1626650065348.

The previous prime is 1626650065321. The next prime is 1626650065409. The reversal of 1626650065349 is 9435600566261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1502610156100 + 124039909249 = 1225810^2 + 352193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1626650065349 - 2⁸ = 1626650065093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1626650065349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1626650065319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813325032674 + 813325032675.

It is an arithmetic number, because the mean of its divisors is an integer number (813325032675).

Almost surely, 2^{1626650065349} is an apocalyptic number.

It is an amenable number.

1626650065349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1626650065349 is an equidigital number, since it uses as much as digits as its factorization.

1626650065349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 1626650065349 in words is "one trillion, six hundred twenty-six billion, six hundred fifty million, sixty-five thousand, three hundred forty-nine".