20542753159 has 2 divisors, whose sum is σ = 20542753160. Its totient is φ = 20542753158.

The previous prime is 20542753151. The next prime is 20542753169. The reversal of 20542753159 is 95135724502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20542753159 - 2³ = 20542753151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20542753151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10271376579 + 10271376580.

It is an arithmetic number, because the mean of its divisors is an integer number (10271376580).

Almost surely, 2^20542753159 is an apocalyptic number.

20542753159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20542753159 is an equidigital number, since it uses as much as digits as its factorization.

20542753159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 20542753159 in words is "twenty billion, five hundred forty-two million, seven hundred fifty-three thousand, one hundred fifty-nine".