20387560050659 has 2 divisors, whose sum is σ = 20387560050660. Its totient is φ = 20387560050658.

The previous prime is 20387560050623. The next prime is 20387560050727. The reversal of 20387560050659 is 95605006578302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20387560050659 is a prime.

It is not a weakly prime, because it can be changed into another prime (20387560050619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10193780025329 + 10193780025330.

It is an arithmetic number, because the mean of its divisors is an integer number (10193780025330).

Almost surely, 2^{20387560050659} is an apocalyptic number.

20387560050659 is a deficient number, since it is larger than the sum of its proper divisors (1).

20387560050659 is an equidigital number, since it uses as much as digits as its factorization.

20387560050659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608000, while the sum is 56.

The spelling of 20387560050659 in words is "twenty trillion, three hundred eighty-seven billion, five hundred sixty million, fifty thousand, six hundred fifty-nine".