226999177218 has 270 divisors, whose sum is σ = 580047031641. Its totient is φ = 66301329600.

The previous prime is 226999177151. The next prime is 226999177291. The reversal of 226999177218 is 812771999622.

226999177218 is a `hidden beast` number, since 2 + 269 + 9 + 91 + 77 + 218 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 162113332689 + 64885844529 = 402633^2 + 254727^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=336897.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 2734929805 + ... + 2734929887.

Almost surely, 2^226999177218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226999177218

226999177218 is an abundant number, since it is smaller than the sum of its proper divisors (353047854423).

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

226999177218 is an equidigital number, since it uses as much as digits as its factorization.

226999177218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 140 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 63.

The spelling of 226999177218 in words is "two hundred twenty-six billion, nine hundred ninety-nine million, one hundred seventy-seven thousand, two hundred eighteen".