20801841684372 has 72 divisors (see below), whose sum is σ = 62166423446400. Its totient is φ = 5738439083328.

The previous prime is 20801841684301. The next prime is 20801841684373. The reversal of 20801841684372 is 27348614810802.

20801841684372 is a `hidden beast` number, since 2 + 0 + 8 + 0 + 184 + 16 + 84 + 372 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20801841684373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1423216672 + ... + 1423231287.

Almost surely, 2^{20801841684372} is an apocalyptic number.

It is an amenable number.

20801841684372 is an abundant number, since it is smaller than the sum of its proper divisors (41364581762028).

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

20801841684372 is a wasteful number, since it uses less digits than its factorization.

20801841684372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846448005 (or 2846448000 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 20801841684372 in words is "twenty trillion, eight hundred one billion, eight hundred forty-one million, six hundred eighty-four thousand, three hundred seventy-two".