20267332807633 has 2 divisors, whose sum is σ = 20267332807634. Its totient is φ = 20267332807632.

The previous prime is 20267332807621. The next prime is 20267332807681. The reversal of 20267332807633 is 33670823376202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18150258337344 + 2117074470289 = 4260312^2 + 1455017^2 .

It is a cyclic number.

It is not a de Polignac number, because 20267332807633 - 2²¹ = 20267330710481 is a prime.

It is not a weakly prime, because it can be changed into another prime (20267332807693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133666403816 + 10133666403817.

It is an arithmetic number, because the mean of its divisors is an integer number (10133666403817).

Almost surely, 2^{20267332807633} is an apocalyptic number.

It is an amenable number.

20267332807633 is a deficient number, since it is larger than the sum of its proper divisors (1).

20267332807633 is an equidigital number, since it uses as much as digits as its factorization.

20267332807633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 52.

The spelling of 20267332807633 in words is "twenty trillion, two hundred sixty-seven billion, three hundred thirty-two million, eight hundred seven thousand, six hundred thirty-three".