20775432059 has 2 divisors, whose sum is σ = 20775432060. Its totient is φ = 20775432058.

The previous prime is 20775432023. The next prime is 20775432077. The reversal of 20775432059 is 95023457702.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20775432059 - 2¹⁶ = 20775366523 is a prime.

It is not a weakly prime, because it can be changed into another prime (20775432079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10387716029 + 10387716030.

It is an arithmetic number, because the mean of its divisors is an integer number (10387716030).

Almost surely, 2^20775432059 is an apocalyptic number.

20775432059 is a deficient number, since it is larger than the sum of its proper divisors (1).

20775432059 is an equidigital number, since it uses as much as digits as its factorization.

20775432059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 20775432059 in words is "twenty billion, seven hundred seventy-five million, four hundred thirty-two thousand, fifty-nine".