20349669611 has 2 divisors, whose sum is σ = 20349669612. Its totient is φ = 20349669610.

The previous prime is 20349669569. The next prime is 20349669623. The reversal of 20349669611 is 11696694302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20349669611 - 2¹⁸ = 20349407467 is a prime.

It is not a weakly prime, because it can be changed into another prime (20349669661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10174834805 + 10174834806.

It is an arithmetic number, because the mean of its divisors is an integer number (10174834806).

Almost surely, 2^20349669611 is an apocalyptic number.

20349669611 is a deficient number, since it is larger than the sum of its proper divisors (1).

20349669611 is an equidigital number, since it uses as much as digits as its factorization.

20349669611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 20349669611 in words is "twenty billion, three hundred forty-nine million, six hundred sixty-nine thousand, six hundred eleven".