25563066413366 has 32 divisors (see below), whose sum is σ = 38495871097632. Its totient is φ = 12731237648640.

The previous prime is 25563066413317. The next prime is 25563066413407. The reversal of 25563066413366 is 66331466036552.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029055106 + ... + 1029079946.

It is an arithmetic number, because the mean of its divisors is an integer number (1202995971801).

Almost surely, 2^{25563066413366} is an apocalyptic number.

25563066413366 is a deficient number, since it is larger than the sum of its proper divisors (12932804684266).

25563066413366 is a wasteful number, since it uses less digits than its factorization.

25563066413366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27344.

The product of its (nonzero) digits is 41990400, while the sum is 56.

The spelling of 25563066413366 in words is "twenty-five trillion, five hundred sixty-three billion, sixty-six million, four hundred thirteen thousand, three hundred sixty-six".