20436606038280 has 128 divisors (see below), whose sum is σ = 64543805798400. Its totient is φ = 5162359640832.

The previous prime is 20436606038279. The next prime is 20436606038291. The reversal of 20436606038280 is 8283060663402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20262507 + ... + 21247173.

It is an arithmetic number, because the mean of its divisors is an integer number (504248482800).

Almost surely, 2^{20436606038280} is an apocalyptic number.

20436606038280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20436606038280 is an abundant number, since it is smaller than the sum of its proper divisors (44107199760120).

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

20436606038280 is a wasteful number, since it uses less digits than its factorization.

20436606038280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993803 (or 993799 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 20436606038280 in words is "twenty trillion, four hundred thirty-six billion, six hundred six million, thirty-eight thousand, two hundred eighty".