20611476463 has 2 divisors, whose sum is σ = 20611476464. Its totient is φ = 20611476462.

The previous prime is 20611476461. The next prime is 20611476503. The reversal of 20611476463 is 36467411602.

It is an a-pointer prime, because the next prime (20611476503) can be obtained adding 20611476463 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20611476463 - 2¹ = 20611476461 is a prime.

Together with 20611476461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20611476461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10305738231 + 10305738232.

It is an arithmetic number, because the mean of its divisors is an integer number (10305738232).

Almost surely, 2^20611476463 is an apocalyptic number.

20611476463 is a deficient number, since it is larger than the sum of its proper divisors (1).

20611476463 is an equidigital number, since it uses as much as digits as its factorization.

20611476463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 20611476463 in words is "twenty billion, six hundred eleven million, four hundred seventy-six thousand, four hundred sixty-three".