226138952646 has 12 divisors (see below), whose sum is σ = 489967730772. Its totient is φ = 75379650876.

The previous prime is 226138952639. The next prime is 226138952647. The reversal of 226138952646 is 646259831622.

226138952646 is a `hidden beast` number, since 2 + 26 + 13 + 89 + 526 + 4 + 6 = 666.

It is a super-2 number, since 2×226138952646² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 226138952592 and 226138952601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226138952647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6281637556 + ... + 6281637591.

It is an arithmetic number, because the mean of its divisors is an integer number (40830644231).

Almost surely, 2^226138952646 is an apocalyptic number.

226138952646 is an abundant number, since it is smaller than the sum of its proper divisors (263828778126).

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

226138952646 is a wasteful number, since it uses less digits than its factorization.

226138952646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12563275155 (or 12563275152 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 226138952646 in words is "two hundred twenty-six billion, one hundred thirty-eight million, nine hundred fifty-two thousand, six hundred forty-six".