20453633033 has 2 divisors, whose sum is σ = 20453633034. Its totient is φ = 20453633032.

The previous prime is 20453633023. The next prime is 20453633063. The reversal of 20453633033 is 33033635402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20353872889 + 99760144 = 142667^2 + 9988^2 .

It is a cyclic number.

It is not a de Polignac number, because 20453633033 - 2⁴ = 20453633017 is a prime.

It is a super-2 number, since 2×20453633033² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20453633023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226816516 + 10226816517.

It is an arithmetic number, because the mean of its divisors is an integer number (10226816517).

Almost surely, 2^20453633033 is an apocalyptic number.

It is an amenable number.

20453633033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20453633033 is an equidigital number, since it uses as much as digits as its factorization.

20453633033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 32.

The spelling of 20453633033 in words is "twenty billion, four hundred fifty-three million, six hundred thirty-three thousand, thirty-three".