20365347071 has 2 divisors, whose sum is σ = 20365347072. Its totient is φ = 20365347070.

The previous prime is 20365347029. The next prime is 20365347127. The reversal of 20365347071 is 17074356302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20365347071 is a prime.

It is a super-2 number, since 2×20365347071² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20365341071) 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, 10182673535 + 10182673536.

It is an arithmetic number, because the mean of its divisors is an integer number (10182673536).

Almost surely, 2^20365347071 is an apocalyptic number.

20365347071 is a deficient number, since it is larger than the sum of its proper divisors (1).

20365347071 is an equidigital number, since it uses as much as digits as its factorization.

20365347071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 20365347071 in words is "twenty billion, three hundred sixty-five million, three hundred forty-seven thousand, seventy-one".