999998888066741 has 2 divisors, whose sum is σ = 999998888066742. Its totient is φ = 999998888066740.

The previous prime is 999998888066719. The next prime is 999998888066777. The reversal of 999998888066741 is 147660888899999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 510516626998225 + 489482261068516 = 22594615^2 + 22124246^2 .

It is a cyclic number.

It is not a de Polignac number, because 999998888066741 - 2¹⁰ = 999998888065717 is a prime.

It is a super-2 number, since 2×999998888066741² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999998888066701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999444033370 + 499999444033371.

It is an arithmetic number, because the mean of its divisors is an integer number (499999444033371).

Almost surely, 2^{999998888066741} is an apocalyptic number.

It is an amenable number.

999998888066741 is a deficient number, since it is larger than the sum of its proper divisors (1).

999998888066741 is an equidigital number, since it uses as much as digits as its factorization.

999998888066741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243799621632, while the sum is 101.

The spelling of 999998888066741 in words is "nine hundred ninety-nine trillion, nine hundred ninety-eight billion, eight hundred eighty-eight million, sixty-six thousand, seven hundred forty-one".