33499440061 has 2 divisors, whose sum is σ = 33499440062. Its totient is φ = 33499440060.

The previous prime is 33499440059. The next prime is 33499440077. The reversal of 33499440061 is 16004499433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20504808025 + 12994632036 = 143195^2 + 113994^2 .

It is a cyclic number.

It is not a de Polignac number, because 33499440061 - 2¹ = 33499440059 is a prime.

It is a super-2 number, since 2×33499440061² (a number of 22 digits) contains 22 as substring.

Together with 33499440059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33499440041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16749720030 + 16749720031.

It is an arithmetic number, because the mean of its divisors is an integer number (16749720031).

Almost surely, 2^33499440061 is an apocalyptic number.

It is an amenable number.

33499440061 is a deficient number, since it is larger than the sum of its proper divisors (1).

33499440061 is an equidigital number, since it uses as much as digits as its factorization.

33499440061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 33499440061 in words is "thirty-three billion, four hundred ninety-nine million, four hundred forty thousand, sixty-one".