226215663 has 4 divisors (see below), whose sum is σ = 301620888. Its totient is φ = 150810440.

The previous prime is 226215611. The next prime is 226215677. The reversal of 226215663 is 366512622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 226215663 - 2⁶ = 226215599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226215683) 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, 37702608 + ... + 37702613.

It is an arithmetic number, because the mean of its divisors is an integer number (75405222).

Almost surely, 2^226215663 is an apocalyptic number.

226215663 is a deficient number, since it is larger than the sum of its proper divisors (75405225).

226215663 is an equidigital number, since it uses as much as digits as its factorization.

226215663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75405224.

The product of its digits is 25920, while the sum is 33.

The square root of 226215663 is about 15040.4675126806. The cubic root of 226215663 is about 609.3136264396.

The spelling of 226215663 in words is "two hundred twenty-six million, two hundred fifteen thousand, six hundred sixty-three".