20075966539 has 2 divisors, whose sum is σ = 20075966540. Its totient is φ = 20075966538.

The previous prime is 20075966531. The next prime is 20075966563. The reversal of 20075966539 is 93566957002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20075966539 - 2³ = 20075966531 is a prime.

It is not a weakly prime, because it can be changed into another prime (20075966531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037983269 + 10037983270.

It is an arithmetic number, because the mean of its divisors is an integer number (10037983270).

Almost surely, 2^20075966539 is an apocalyptic number.

20075966539 is a deficient number, since it is larger than the sum of its proper divisors (1).

20075966539 is an equidigital number, since it uses as much as digits as its factorization.

20075966539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The spelling of 20075966539 in words is "twenty billion, seventy-five million, nine hundred sixty-six thousand, five hundred thirty-nine".