25543608842816 has 56 divisors (see below), whose sum is σ = 54171338378976. Its totient is φ = 11908180428800.

The previous prime is 25543608842803. The next prime is 25543608842849. The reversal of 25543608842816 is 61824880634552.

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, 109591910 + ... + 109824741.

It is an arithmetic number, because the mean of its divisors is an integer number (967345328196).

Almost surely, 2^{25543608842816} is an apocalyptic number.

It is an amenable number.

25543608842816 is an abundant number, since it is smaller than the sum of its proper divisors (28627729536160).

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

25543608842816 is a wasteful number, since it uses less digits than its factorization.

25543608842816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219416787 (or 219416777 counting only the distinct ones).

The product of its (nonzero) digits is 88473600, while the sum is 62.

The spelling of 25543608842816 in words is "twenty-five trillion, five hundred forty-three billion, six hundred eight million, eight hundred forty-two thousand, eight hundred sixteen".