20415465480659 has 2 divisors, whose sum is σ = 20415465480660. Its totient is φ = 20415465480658.

The previous prime is 20415465480653. The next prime is 20415465480677. The reversal of 20415465480659 is 95608456451402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20415465480659 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20415465480598 and 20415465480607.

It is not a weakly prime, because it can be changed into another prime (20415465480653) 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, 10207732740329 + 10207732740330.

It is an arithmetic number, because the mean of its divisors is an integer number (10207732740330).

Almost surely, 2^{20415465480659} is an apocalyptic number.

20415465480659 is a deficient number, since it is larger than the sum of its proper divisors (1).

20415465480659 is an equidigital number, since it uses as much as digits as its factorization.

20415465480659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472000, while the sum is 59.

The spelling of 20415465480659 in words is "twenty trillion, four hundred fifteen billion, four hundred sixty-five million, four hundred eighty thousand, six hundred fifty-nine".