225723442160 has 80 divisors (see below), whose sum is σ = 546799859712. Its totient is φ = 86560108800.

The previous prime is 225723442121. The next prime is 225723442237. The reversal of 225723442160 is 61244327522.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159956 + ... + 690675.

Almost surely, 2^225723442160 is an apocalyptic number.

225723442160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225723442160 is an abundant number, since it is smaller than the sum of its proper divisors (321076417552).

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

225723442160 is a wasteful number, since it uses less digits than its factorization.

225723442160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850782 (or 850776 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 225723442160 its reverse (61244327522), we get a palindrome (286967769682).

The spelling of 225723442160 in words is "two hundred twenty-five billion, seven hundred twenty-three million, four hundred forty-two thousand, one hundred sixty".