25663345345 has 16 divisors (see below), whose sum is σ = 34165074240. Its totient is φ = 18347905600.

The previous prime is 25663345313. The next prime is 25663345361. The reversal of 25663345345 is 54354336652.

It is not a de Polignac number, because 25663345345 - 2⁵ = 25663345313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25663345295 and 25663345304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3951046 + ... + 3957535.

It is an arithmetic number, because the mean of its divisors is an integer number (2135317140).

Almost surely, 2^25663345345 is an apocalyptic number.

It is an amenable number.

25663345345 is a deficient number, since it is larger than the sum of its proper divisors (8501728895).

25663345345 is a wasteful number, since it uses less digits than its factorization.

25663345345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908656.

The product of its digits is 3888000, while the sum is 46.

The spelling of 25663345345 in words is "twenty-five billion, six hundred sixty-three million, three hundred forty-five thousand, three hundred forty-five".