20866316374200 has 192 divisors, whose sum is σ = 72473280520320. Its totient is φ = 4921784640000.

The previous prime is 20866316374171. The next prime is 20866316374279. The reversal of 20866316374200 is 247361366802.

It is a self number, because there is not a number n which added to its sum of digits gives 20866316374200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42479626 + ... + 42968025.

It is an arithmetic number, because the mean of its divisors is an integer number (377465002710).

Almost surely, 2^{20866316374200} is an apocalyptic number.

20866316374200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20866316374200 is an abundant number, since it is smaller than the sum of its proper divisors (51606964146120).

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

20866316374200 is a wasteful number, since it uses less digits than its factorization.

20866316374200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85447718 (or 85447709 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 20866316374200 in words is "twenty trillion, eight hundred sixty-six billion, three hundred sixteen million, three hundred seventy-four thousand, two hundred".