20022466691 has 2 divisors, whose sum is σ = 20022466692. Its totient is φ = 20022466690.

The previous prime is 20022466657. The next prime is 20022466769. The reversal of 20022466691 is 19666422002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20022466691 - 2¹⁰ = 20022465667 is a prime.

It is not a weakly prime, because it can be changed into another prime (20022466991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011233345 + 10011233346.

It is an arithmetic number, because the mean of its divisors is an integer number (10011233346).

Almost surely, 2^20022466691 is an apocalyptic number.

20022466691 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022466691 is an equidigital number, since it uses as much as digits as its factorization.

20022466691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 20022466691 its reverse (19666422002), we get a palindrome (39688888693).

The spelling of 20022466691 in words is "twenty billion, twenty-two million, four hundred sixty-six thousand, six hundred ninety-one".