20633425667 has 2 divisors, whose sum is σ = 20633425668. Its totient is φ = 20633425666.

The previous prime is 20633425651. The next prime is 20633425733. The reversal of 20633425667 is 76652433602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20633425667 - 2⁴ = 20633425651 is a prime.

It is a super-2 number, since 2×20633425667² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20633425607) 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, 10316712833 + 10316712834.

It is an arithmetic number, because the mean of its divisors is an integer number (10316712834).

Almost surely, 2^20633425667 is an apocalyptic number.

20633425667 is a deficient number, since it is larger than the sum of its proper divisors (1).

20633425667 is an equidigital number, since it uses as much as digits as its factorization.

20633425667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 44.

The spelling of 20633425667 in words is "twenty billion, six hundred thirty-three million, four hundred twenty-five thousand, six hundred sixty-seven".