1647680161133 has 2 divisors, whose sum is σ = 1647680161134. Its totient is φ = 1647680161132.

The previous prime is 1647680161129. The next prime is 1647680161189. The reversal of 1647680161133 is 3311610867461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1636511264644 + 11168896489 = 1279262^2 + 105683^2 .

It is a cyclic number.

It is not a de Polignac number, because 1647680161133 - 2² = 1647680161129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1647680151133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 823840080566 + 823840080567.

It is an arithmetic number, because the mean of its divisors is an integer number (823840080567).

Almost surely, 2^{1647680161133} is an apocalyptic number.

It is an amenable number.

1647680161133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1647680161133 is an equidigital number, since it uses as much as digits as its factorization.

1647680161133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 1647680161133 in words is "one trillion, six hundred forty-seven billion, six hundred eighty million, one hundred sixty-one thousand, one hundred thirty-three".