226008442645 has 4 divisors (see below), whose sum is σ = 271210131180. Its totient is φ = 180806754112.

The previous prime is 226008442631. The next prime is 226008442651. The reversal of 226008442645 is 546244800622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 146812351921 + 79196090724 = 383161^2 + 281418^2 .

It is a cyclic number.

It is not a de Polignac number, because 226008442645 - 2²¹ = 226006345493 is a prime.

It is a super-2 number, since 2×226008442645² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22600844260 + ... + 22600844269.

It is an arithmetic number, because the mean of its divisors is an integer number (67802532795).

Almost surely, 2^226008442645 is an apocalyptic number.

It is an amenable number.

226008442645 is a deficient number, since it is larger than the sum of its proper divisors (45201688535).

226008442645 is an equidigital number, since it uses as much as digits as its factorization.

226008442645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45201688534.

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 226008442645 in words is "two hundred twenty-six billion, eight million, four hundred forty-two thousand, six hundred forty-five".