1647220007141 has 2 divisors, whose sum is σ = 1647220007142. Its totient is φ = 1647220007140.

The previous prime is 1647220007123. The next prime is 1647220007201. The reversal of 1647220007141 is 1417000227461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1357506944641 + 289713062500 = 1165121^2 + 538250^2 .

It is a cyclic number.

It is not a de Polignac number, because 1647220007141 - 2²⁶ = 1647152898277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1647220097141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 823610003570 + 823610003571.

It is an arithmetic number, because the mean of its divisors is an integer number (823610003571).

Almost surely, 2^{1647220007141} is an apocalyptic number.

It is an amenable number.

1647220007141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1647220007141 is an equidigital number, since it uses as much as digits as its factorization.

1647220007141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 35.

The spelling of 1647220007141 in words is "one trillion, six hundred forty-seven billion, two hundred twenty million, seven thousand, one hundred forty-one".