25151716128 has 192 divisors, whose sum is σ = 83241768960. Its totient is φ = 6459340800.

The previous prime is 25151716097. The next prime is 25151716129. The reversal of 25151716128 is 82161715152.

It is not an unprimeable number, because it can be changed into a prime (25151716129) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 638773 + ... + 677003.

It is an arithmetic number, because the mean of its divisors is an integer number (433550880).

Almost surely, 2^25151716128 is an apocalyptic number.

25151716128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25151716128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41620884480).

25151716128 is an abundant number, since it is smaller than the sum of its proper divisors (58090052832).

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

25151716128 is a wasteful number, since it uses less digits than its factorization.

25151716128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38351 (or 38343 counting only the distinct ones).

The product of its digits is 33600, while the sum is 39.

The spelling of 25151716128 in words is "twenty-five billion, one hundred fifty-one million, seven hundred sixteen thousand, one hundred twenty-eight".