1025817118166 has 8 divisors (see below), whose sum is σ = 1538828420304. Its totient is φ = 512874311400.

The previous prime is 1025817118163. The next prime is 1025817118177. The reversal of 1025817118166 is 6618117185201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1025817118166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025817118163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17086385 + ... + 17146316.

It is an arithmetic number, because the mean of its divisors is an integer number (192353552538).

Almost surely, 2^{1025817118166} is an apocalyptic number.

1025817118166 is a deficient number, since it is larger than the sum of its proper divisors (513011302138).

1025817118166 is a wasteful number, since it uses less digits than its factorization.

1025817118166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34247686.

The product of its (nonzero) digits is 161280, while the sum is 47.

The spelling of 1025817118166 in words is "one trillion, twenty-five billion, eight hundred seventeen million, one hundred eighteen thousand, one hundred sixty-six".