11198705641 has 2 divisors, whose sum is σ = 11198705642. Its totient is φ = 11198705640.

The previous prime is 11198705561. The next prime is 11198705663. The reversal of 11198705641 is 14650789111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9385734400 + 1812971241 = 96880^2 + 42579^2 .

It is a cyclic number.

It is not a de Polignac number, because 11198705641 - 2⁷ = 11198705513 is a prime.

It is a super-3 number, since 3×11198705641³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (11198705941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599352820 + 5599352821.

It is an arithmetic number, because the mean of its divisors is an integer number (5599352821).

Almost surely, 2^11198705641 is an apocalyptic number.

It is an amenable number.

11198705641 is a deficient number, since it is larger than the sum of its proper divisors (1).

11198705641 is an equidigital number, since it uses as much as digits as its factorization.

11198705641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 43.

The spelling of 11198705641 in words is "eleven billion, one hundred ninety-eight million, seven hundred five thousand, six hundred forty-one".