20466463506 has 32 divisors (see below), whose sum is σ = 43347078720. Its totient is φ = 6419913216.

The previous prime is 20466463483. The next prime is 20466463513. The reversal of 20466463506 is 60536466402.

It is a super-2 number, since 2×20466463506² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1101465 + ... + 1119891.

It is an arithmetic number, because the mean of its divisors is an integer number (1354596210).

Almost surely, 2^20466463506 is an apocalyptic number.

20466463506 is an abundant number, since it is smaller than the sum of its proper divisors (22880615214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20466463506 is a wasteful number, since it uses less digits than its factorization.

20466463506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29338.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 20466463506 in words is "twenty billion, four hundred sixty-six million, four hundred sixty-three thousand, five hundred six".