226491301620 has 144 divisors (see below), whose sum is σ = 709459645440. Its totient is φ = 58426790400.

The previous prime is 226491301609. The next prime is 226491301667. The reversal of 226491301620 is 26103194622.

It is a happy number.

226491301620 is a `hidden beast` number, since 2 + 2 + 6 + 491 + 3 + 0 + 162 + 0 = 666.

226491301620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18245976 + ... + 18258384.

Almost surely, 2^226491301620 is an apocalyptic number.

226491301620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226491301620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354729822720).

226491301620 is an abundant number, since it is smaller than the sum of its proper divisors (482968343820).

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

226491301620 is a wasteful number, since it uses less digits than its factorization.

226491301620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15726 (or 15721 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 226491301620 in words is "two hundred twenty-six billion, four hundred ninety-one million, three hundred one thousand, six hundred twenty".