20306267315699 has 2 divisors, whose sum is σ = 20306267315700. Its totient is φ = 20306267315698.

The previous prime is 20306267315693. The next prime is 20306267315731. The reversal of 20306267315699 is 99651376260302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20306267315699 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20306267315693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10153133657849 + 10153133657850.

It is an arithmetic number, because the mean of its divisors is an integer number (10153133657850).

Almost surely, 2^{20306267315699} is an apocalyptic number.

20306267315699 is a deficient number, since it is larger than the sum of its proper divisors (1).

20306267315699 is an equidigital number, since it uses as much as digits as its factorization.

20306267315699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22044960, while the sum is 59.

The spelling of 20306267315699 in words is "twenty trillion, three hundred six billion, two hundred sixty-seven million, three hundred fifteen thousand, six hundred ninety-nine".