33420434153 has 2 divisors, whose sum is σ = 33420434154. Its totient is φ = 33420434152.

The previous prime is 33420434041. The next prime is 33420434167. The reversal of 33420434153 is 35143402433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32187230464 + 1233203689 = 179408^2 + 35117^2 .

It is a cyclic number.

It is not a de Polignac number, because 33420434153 - 2⁸ = 33420433897 is a prime.

It is a super-2 number, since 2×33420434153² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33420434653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710217076 + 16710217077.

It is an arithmetic number, because the mean of its divisors is an integer number (16710217077).

Almost surely, 2^33420434153 is an apocalyptic number.

It is an amenable number.

33420434153 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420434153 is an equidigital number, since it uses as much as digits as its factorization.

33420434153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 33420434153 its reverse (35143402433), we get a palindrome (68563836586).

The spelling of 33420434153 in words is "thirty-three billion, four hundred twenty million, four hundred thirty-four thousand, one hundred fifty-three".