25424126166 has 16 divisors (see below), whose sum is σ = 51106367664. Its totient is φ = 8431689504.

The previous prime is 25424126111. The next prime is 25424126197. The reversal of 25424126166 is 66162142452.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 10753525 + ... + 10755888.

It is an arithmetic number, because the mean of its divisors is an integer number (3194147979).

Almost surely, 2^25424126166 is an apocalyptic number.

25424126166 is an abundant number, since it is smaller than the sum of its proper divisors (25682241498).

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

25424126166 is a wasteful number, since it uses less digits than its factorization.

25424126166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21509615.

The product of its digits is 138240, while the sum is 39.

The spelling of 25424126166 in words is "twenty-five billion, four hundred twenty-four million, one hundred twenty-six thousand, one hundred sixty-six".