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25664730112 = 210771211239
BaseRepresentation
bin10111111001101111…
…001011010000000000
32110020121201101002201
4113321233023100000
5410030132330422
615442404122544
71565665415020
oct277157132000
973217641081
1025664730112
11a98008665a
124b83096454
132560177048
14135677da80
15a03229727
hex5f9bcb400

25664730112 has 176 divisors, whose sum is σ = 59991183360. Its totient is φ = 10747699200.

The previous prime is 25664730043. The next prime is 25664730163. The reversal of 25664730112 is 21103746652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107383689 + ... + 107383927.

Almost surely, 225664730112 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 25664730112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29995591680).

25664730112 is an abundant number, since it is smaller than the sum of its proper divisors (34326453248).

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

25664730112 is a wasteful number, since it uses less digits than its factorization.

25664730112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 25664730112 in words is "twenty-five billion, six hundred sixty-four million, seven hundred thirty thousand, one hundred twelve".