20406664110264 has 16 divisors (see below), whose sum is σ = 51016660275720. Its totient is φ = 6802221370080.

The previous prime is 20406664110247. The next prime is 20406664110293. The reversal of 20406664110264 is 46201146660402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425138835607 + ... + 425138835654.

Almost surely, 2^{20406664110264} is an apocalyptic number.

20406664110264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20406664110264 is an abundant number, since it is smaller than the sum of its proper divisors (30609996165456).

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

20406664110264 is a wasteful number, since it uses less digits than its factorization.

20406664110264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850277671270 (or 850277671266 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 20406664110264 in words is "twenty trillion, four hundred six billion, six hundred sixty-four million, one hundred ten thousand, two hundred sixty-four".