20061606287 has 2 divisors, whose sum is σ = 20061606288. Its totient is φ = 20061606286.

The previous prime is 20061606281. The next prime is 20061606329. The reversal of 20061606287 is 78260616002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20061606287 - 2¹⁸ = 20061344143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20061606287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20061606281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10030803143 + 10030803144.

It is an arithmetic number, because the mean of its divisors is an integer number (10030803144).

Almost surely, 2^20061606287 is an apocalyptic number.

20061606287 is a deficient number, since it is larger than the sum of its proper divisors (1).

20061606287 is an equidigital number, since it uses as much as digits as its factorization.

20061606287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 20061606287 in words is "twenty billion, sixty-one million, six hundred six thousand, two hundred eighty-seven".