33561112073 has 2 divisors, whose sum is σ = 33561112074. Its totient is φ = 33561112072.

The previous prime is 33561112021. The next prime is 33561112121. The reversal of 33561112073 is 37021116533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16979914249 + 16581197824 = 130307^2 + 128768^2 .

It is a cyclic number.

It is not a de Polignac number, because 33561112073 - 2¹⁰ = 33561111049 is a prime.

It is a super-2 number, since 2×33561112073² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33561142073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16780556036 + 16780556037.

It is an arithmetic number, because the mean of its divisors is an integer number (16780556037).

Almost surely, 2^33561112073 is an apocalyptic number.

It is an amenable number.

33561112073 is a deficient number, since it is larger than the sum of its proper divisors (1).

33561112073 is an equidigital number, since it uses as much as digits as its factorization.

33561112073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 33561112073 in words is "thirty-three billion, five hundred sixty-one million, one hundred twelve thousand, seventy-three".