25366225680 has 160 divisors (see below), whose sum is σ = 88451838720. Its totient is φ = 6764280192.

The previous prime is 25366225607. The next prime is 25366225723. The reversal of 25366225680 is 8652266352.

25366225680 is a `hidden beast` number, since 2 + 5 + 3 + 66 + 22 + 568 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 31 ways as a sum of consecutive naturals, for example, 102469 + ... + 247451.

It is an arithmetic number, because the mean of its divisors is an integer number (552823992).

Almost surely, 2^25366225680 is an apocalyptic number.

25366225680 is a gapful number since it is divisible by the number (20) 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 25366225680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44225919360).

25366225680 is an abundant number, since it is smaller than the sum of its proper divisors (63085613040).

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

25366225680 is an equidigital number, since it uses as much as digits as its factorization.

25366225680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145017 (or 144993 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 25366225680 in words is "twenty-five billion, three hundred sixty-six million, two hundred twenty-five thousand, six hundred eighty".