20366201 has 4 divisors (see below), whose sum is σ = 21251712. Its totient is φ = 19480692.

The previous prime is 20366183. The next prime is 20366237. The reversal of 20366201 is 10266302.

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 a de Polignac number, because none of the positive numbers 2^k-20366201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20366251) 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, 442721 + ... + 442766.

It is an arithmetic number, because the mean of its divisors is an integer number (5312928).

Almost surely, 2^20366201 is an apocalyptic number.

It is an amenable number.

20366201 is a deficient number, since it is larger than the sum of its proper divisors (885511).

20366201 is an equidigital number, since it uses as much as digits as its factorization.

20366201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885510.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20366201 is about 4512.8927529911. The cubic root of 20366201 is about 273.0884559079.

The spelling of 20366201 in words is "twenty million, three hundred sixty-six thousand, two hundred one".