225446354320 has 80 divisors (see below), whose sum is σ = 580348623168. Its totient is φ = 80756881920.

The previous prime is 225446354317. The next prime is 225446354327. The reversal of 225446354320 is 23453644522.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (225446354327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852899 + ... + 1970818.

Almost surely, 2^225446354320 is an apocalyptic number.

225446354320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225446354320 is an abundant number, since it is smaller than the sum of its proper divisors (354902268848).

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

225446354320 is a wasteful number, since it uses less digits than its factorization.

225446354320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823808 (or 3823802 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 225446354320 its reverse (23453644522), we get a palindrome (248899998842).

The spelling of 225446354320 in words is "two hundred twenty-five billion, four hundred forty-six million, three hundred fifty-four thousand, three hundred twenty".