20702436611 has 2 divisors, whose sum is σ = 20702436612. Its totient is φ = 20702436610.

The previous prime is 20702436589. The next prime is 20702436617. The reversal of 20702436611 is 11663420702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20702436611 - 2²² = 20698242307 is a prime.

It is not a weakly prime, because it can be changed into another prime (20702436617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10351218305 + 10351218306.

It is an arithmetic number, because the mean of its divisors is an integer number (10351218306).

Almost surely, 2^20702436611 is an apocalyptic number.

20702436611 is a deficient number, since it is larger than the sum of its proper divisors (1).

20702436611 is an equidigital number, since it uses as much as digits as its factorization.

20702436611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 20702436611 in words is "twenty billion, seven hundred two million, four hundred thirty-six thousand, six hundred eleven".