25655195670720 has 1792 divisors, whose sum is σ = 109215350784000. Its totient is φ = 4945747968000.

The previous prime is 25655195670661. The next prime is 25655195670803. The reversal of 25655195670720 is 2707659155652.

It is a Harshad number since it is a multiple of its sum of digits (60).

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 255 ways as a sum of consecutive naturals, for example, 9901656625 + ... + 9901659215.

Almost surely, 2^{25655195670720} is an apocalyptic number.

25655195670720 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 25655195670720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54607675392000).

25655195670720 is an abundant number, since it is smaller than the sum of its proper divisors (83560155113280).

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

25655195670720 is a wasteful number, since it uses less digits than its factorization.

25655195670720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838 (or 2828 counting only the distinct ones).

The product of its (nonzero) digits is 39690000, while the sum is 60.

The spelling of 25655195670720 in words is "twenty-five trillion, six hundred fifty-five billion, one hundred ninety-five million, six hundred seventy thousand, seven hundred twenty".