225639240178 has 8 divisors (see below), whose sum is σ = 369227847600. Its totient is φ = 102563290980.

The previous prime is 225639240163. The next prime is 225639240193. The reversal of 225639240178 is 871042936522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (225639240163) and next prime (225639240193).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5128164528 + ... + 5128164571.

It is an arithmetic number, because the mean of its divisors is an integer number (46153480950).

It is a 1-persistent number, because it is pandigital, but 2⋅225639240178 = 451278480356 is not.

Almost surely, 2^225639240178 is an apocalyptic number.

225639240178 is a deficient number, since it is larger than the sum of its proper divisors (143588607422).

225639240178 is a wasteful number, since it uses less digits than its factorization.

225639240178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10256329112.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 225639240178 in words is "two hundred twenty-five billion, six hundred thirty-nine million, two hundred forty thousand, one hundred seventy-eight".