25566881041340 has 24 divisors (see below), whose sum is σ = 53784479020272. Its totient is φ = 10208842162560.

The previous prime is 25566881041291. The next prime is 25566881041369. The reversal of 25566881041340 is 4314018866552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119379169 + ... + 1119402008.

It is an arithmetic number, because the mean of its divisors is an integer number (2241019959178).

Almost surely, 2^{25566881041340} is an apocalyptic number.

25566881041340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25566881041340 is an abundant number, since it is smaller than the sum of its proper divisors (28217597978932).

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

25566881041340 is a wasteful number, since it uses less digits than its factorization.

25566881041340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238781757 (or 2238781755 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 53.

The spelling of 25566881041340 in words is "twenty-five trillion, five hundred sixty-six billion, eight hundred eighty-one million, forty-one thousand, three hundred forty".