226782056172 has 72 divisors (see below), whose sum is σ = 616689963120. Its totient is φ = 64675013760.

The previous prime is 226782056161. The next prime is 226782056191. The reversal of 226782056172 is 271650287622.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38347 + ... + 674562.

Almost surely, 2^226782056172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226782056172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308344981560).

226782056172 is an abundant number, since it is smaller than the sum of its proper divisors (389907906948).

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

226782056172 is a wasteful number, since it uses less digits than its factorization.

226782056172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713471 (or 713462 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 226782056172 in words is "two hundred twenty-six billion, seven hundred eighty-two million, fifty-six thousand, one hundred seventy-two".