1630553247109 has 2 divisors, whose sum is σ = 1630553247110. Its totient is φ = 1630553247108.

The previous prime is 1630553247101. The next prime is 1630553247119. The reversal of 1630553247109 is 9017423550361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1136309096484 + 494244150625 = 1065978^2 + 703025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630553247109 - 2³ = 1630553247101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630553247101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815276623554 + 815276623555.

It is an arithmetic number, because the mean of its divisors is an integer number (815276623555).

Almost surely, 2^{1630553247109} is an apocalyptic number.

It is an amenable number.

1630553247109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630553247109 is an equidigital number, since it uses as much as digits as its factorization.

1630553247109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 1630553247109 in words is "one trillion, six hundred thirty billion, five hundred fifty-three million, two hundred forty-seven thousand, one hundred nine".