225178389016 has 16 divisors (see below), whose sum is σ = 482525119440. Its totient is φ = 96505023840.

The previous prime is 225178389001. The next prime is 225178389019. The reversal of 225178389016 is 610983871522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225178389019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2010521275 + ... + 2010521386.

It is an arithmetic number, because the mean of its divisors is an integer number (30157819965).

Almost surely, 2^225178389016 is an apocalyptic number.

It is an amenable number.

225178389016 is an abundant number, since it is smaller than the sum of its proper divisors (257346730424).

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

225178389016 is a wasteful number, since it uses less digits than its factorization.

225178389016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021042674 (or 4021042670 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 225178389016 in words is "two hundred twenty-five billion, one hundred seventy-eight million, three hundred eighty-nine thousand, sixteen".