20466363663 has 8 divisors (see below), whose sum is σ = 30320538800. Its totient is φ = 13644242424.

The previous prime is 20466363647. The next prime is 20466363667. The reversal of 20466363663 is 36636366402.

20466363663 is a `hidden beast` number, since 2 + 0 + 4 + 6 + 6 + 3 + 636 + 6 + 3 = 666.

It is not a de Polignac number, because 20466363663 - 2⁴ = 20466363647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466363667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379006708 + ... + 379006761.

It is an arithmetic number, because the mean of its divisors is an integer number (3790067350).

Almost surely, 2^20466363663 is an apocalyptic number.

20466363663 is a deficient number, since it is larger than the sum of its proper divisors (9854175137).

20466363663 is an equidigital number, since it uses as much as digits as its factorization.

20466363663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758013478 (or 758013472 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 45.

The spelling of 20466363663 in words is "twenty billion, four hundred sixty-six million, three hundred sixty-three thousand, six hundred sixty-three".