25378081191216 has 280 divisors, whose sum is σ = 80348767568496. Its totient is φ = 7714556536320.

The previous prime is 25378081191179. The next prime is 25378081191289. The reversal of 25378081191216 is 61219118087352.

25378081191216 is a `hidden beast` number, since 2 + 5 + 378 + 0 + 81 + 191 + 2 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 11577226 + ... + 13593686.

Almost surely, 2^{25378081191216} is an apocalyptic number.

25378081191216 is a gapful number since it is divisible by the number (26) 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 25378081191216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40174383784248).

25378081191216 is an abundant number, since it is smaller than the sum of its proper divisors (54970686377280).

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

25378081191216 is a wasteful number, since it uses less digits than its factorization.

25378081191216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016583 (or 2016562 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 25378081191216 in words is "twenty-five trillion, three hundred seventy-eight billion, eighty-one million, one hundred ninety-one thousand, two hundred sixteen".