33099449561 has 2 divisors, whose sum is σ = 33099449562. Its totient is φ = 33099449560.

The previous prime is 33099449507. The next prime is 33099449587. The reversal of 33099449561 is 16594499033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30875761225 + 2223688336 = 175715^2 + 47156^2 .

It is a cyclic number.

It is not a de Polignac number, because 33099449561 - 2¹⁰ = 33099448537 is a prime.

It is a super-2 number, since 2×33099449561² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33099449161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16549724780 + 16549724781.

It is an arithmetic number, because the mean of its divisors is an integer number (16549724781).

Almost surely, 2^33099449561 is an apocalyptic number.

It is an amenable number.

33099449561 is a deficient number, since it is larger than the sum of its proper divisors (1).

33099449561 is an equidigital number, since it uses as much as digits as its factorization.

33099449561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3149280, while the sum is 53.

The spelling of 33099449561 in words is "thirty-three billion, ninety-nine million, four hundred forty-nine thousand, five hundred sixty-one".