20655452633 has 2 divisors, whose sum is σ = 20655452634. Its totient is φ = 20655452632.

The previous prime is 20655452569. The next prime is 20655452683. The reversal of 20655452633 is 33625455602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18970103824 + 1685348809 = 137732^2 + 41053^2 .

It is a cyclic number.

It is not a de Polignac number, because 20655452633 - 2⁶ = 20655452569 is a prime.

It is not a weakly prime, because it can be changed into another prime (20655452683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10327726316 + 10327726317.

It is an arithmetic number, because the mean of its divisors is an integer number (10327726317).

Almost surely, 2^20655452633 is an apocalyptic number.

It is an amenable number.

20655452633 is a deficient number, since it is larger than the sum of its proper divisors (1).

20655452633 is an equidigital number, since it uses as much as digits as its factorization.

20655452633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 20655452633 in words is "twenty billion, six hundred fifty-five million, four hundred fifty-two thousand, six hundred thirty-three".