225821816684948 has 24 divisors (see below), whose sum is σ = 453804607693920. Its totient is φ = 97243844505120.

The previous prime is 225821816684921. The next prime is 225821816684977. The reversal of 225821816684948 is 849486618128522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135060894311 + ... + 135060895982.

It is an arithmetic number, because the mean of its divisors is an integer number (18908525320580).

Almost surely, 2^{225821816684948} is an apocalyptic number.

It is an amenable number.

225821816684948 is an abundant number, since it is smaller than the sum of its proper divisors (227982791008972).

225821816684948 is a wasteful number, since it uses less digits than its factorization.

225821816684948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270121790327 (or 270121790325 counting only the distinct ones).

The product of its digits is 849346560, while the sum is 74.

The spelling of 225821816684948 in words is "two hundred twenty-five trillion, eight hundred twenty-one billion, eight hundred sixteen million, six hundred eighty-four thousand, nine hundred forty-eight".