8425925841666 has 64 divisors (see below), whose sum is σ = 17478028108800. Its totient is φ = 2704782696000.

The previous prime is 8425925841661. The next prime is 8425925841667. The reversal of 8425925841666 is 6661485295248.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8425925841597 and 8425925841606.

It is not an unprimeable number, because it can be changed into a prime (8425925841661) 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, 543214851 + ... + 543230361.

It is an arithmetic number, because the mean of its divisors is an integer number (273094189200).

Almost surely, 2^{8425925841666} is an apocalyptic number.

8425925841666 is an abundant number, since it is smaller than the sum of its proper divisors (9052102267134).

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

8425925841666 is a wasteful number, since it uses less digits than its factorization.

8425925841666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23415.

The product of its digits is 199065600, while the sum is 66.

The spelling of 8425925841666 in words is "eight trillion, four hundred twenty-five billion, nine hundred twenty-five million, eight hundred forty-one thousand, six hundred sixty-six".