20365416047 has 2 divisors, whose sum is σ = 20365416048. Its totient is φ = 20365416046.

The previous prime is 20365416031. The next prime is 20365416077. The reversal of 20365416047 is 74061456302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20365416047 - 2⁴ = 20365416031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20365416047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20365416007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10182708023 + 10182708024.

It is an arithmetic number, because the mean of its divisors is an integer number (10182708024).

Almost surely, 2^20365416047 is an apocalyptic number.

20365416047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20365416047 is an equidigital number, since it uses as much as digits as its factorization.

20365416047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 20365416047 in words is "twenty billion, three hundred sixty-five million, four hundred sixteen thousand, forty-seven".