25675167265640 has 16 divisors (see below), whose sum is σ = 57769126347780. Its totient is φ = 10270066906240.

The previous prime is 25675167265637. The next prime is 25675167265663. The reversal of 25675167265640 is 4656276157652.

It can be written as a sum of positive squares in 2 ways, for example, as 25439575462756 + 235591802884 = 5043766^2 + 485378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320939590781 + ... + 320939590860.

Almost surely, 2^{25675167265640} is an apocalyptic number.

25675167265640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25675167265640 is an abundant number, since it is smaller than the sum of its proper divisors (32093959082140).

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

25675167265640 is a wasteful number, since it uses less digits than its factorization.

25675167265640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641879181652 (or 641879181648 counting only the distinct ones).

The product of its (nonzero) digits is 127008000, while the sum is 62.

The spelling of 25675167265640 in words is "twenty-five trillion, six hundred seventy-five billion, one hundred sixty-seven million, two hundred sixty-five thousand, six hundred forty".