20804442662201 has 4 divisors (see below), whose sum is σ = 22695755631504. Its totient is φ = 18913129692900.

The previous prime is 20804442662197. The next prime is 20804442662207. The reversal of 20804442662201 is 10226624440802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20804442662201 - 2² = 20804442662197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20804442662207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945656484635 + ... + 945656484656.

It is an arithmetic number, because the mean of its divisors is an integer number (5673938907876).

Almost surely, 2^{20804442662201} is an apocalyptic number.

It is an amenable number.

20804442662201 is a deficient number, since it is larger than the sum of its proper divisors (1891312969303).

20804442662201 is a wasteful number, since it uses less digits than its factorization.

20804442662201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891312969302.

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 20804442662201 in words is "twenty trillion, eight hundred four billion, four hundred forty-two million, six hundred sixty-two thousand, two hundred one".