33420605240261 has 2 divisors, whose sum is σ = 33420605240262. Its totient is φ = 33420605240260.

The previous prime is 33420605240227. The next prime is 33420605240333. The reversal of 33420605240261 is 16204250602433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31716551745025 + 1704053495236 = 5631745^2 + 1305394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33420605240261 is a prime.

It is a super-2 number, since 2×33420605240261² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33420605240221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710302620130 + 16710302620131.

It is an arithmetic number, because the mean of its divisors is an integer number (16710302620131).

Almost surely, 2^{33420605240261} is an apocalyptic number.

It is an amenable number.

33420605240261 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420605240261 is an equidigital number, since it uses as much as digits as its factorization.

33420605240261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 33420605240261 its reverse (16204250602433), we get a palindrome (49624855842694).

The spelling of 33420605240261 in words is "thirty-three trillion, four hundred twenty billion, six hundred five million, two hundred forty thousand, two hundred sixty-one".