25166124418085 has 16 divisors (see below), whose sum is σ = 34513676572800. Its totient is φ = 17256703772736.

The previous prime is 25166124418073. The next prime is 25166124418087. The reversal of 25166124418085 is 58081442166152.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25166124418085 - 2⁶ = 25166124418021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25166124418087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8741486 + ... + 11258144.

It is an arithmetic number, because the mean of its divisors is an integer number (2157104785800).

Almost surely, 2^{25166124418085} is an apocalyptic number.

It is an amenable number.

25166124418085 is a deficient number, since it is larger than the sum of its proper divisors (9347552154715).

25166124418085 is a wasteful number, since it uses less digits than its factorization.

25166124418085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802380.

The product of its (nonzero) digits is 3686400, while the sum is 53.

The spelling of 25166124418085 in words is "twenty-five trillion, one hundred sixty-six billion, one hundred twenty-four million, four hundred eighteen thousand, eighty-five".