25634065016 has 96 divisors (see below), whose sum is σ = 57508599600. Its totient is φ = 10680828480.

The previous prime is 25634065001. The next prime is 25634065019. The reversal of 25634065016 is 61056043652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25634065019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19855331 + ... + 19856621.

Almost surely, 2^25634065016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25634065016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28754299800).

25634065016 is an abundant number, since it is smaller than the sum of its proper divisors (31874534584).

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

25634065016 is an equidigital number, since it uses as much as digits as its factorization.

25634065016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 25634065016 in words is "twenty-five billion, six hundred thirty-four million, sixty-five thousand, sixteen".