2085275777166 has 48 divisors (see below), whose sum is σ = 4616207900928. Its totient is φ = 680117342400.

The previous prime is 2085275777131. The next prime is 2085275777177. The reversal of 2085275777166 is 6617775725802.

It is a happy number.

2085275777166 is a `hidden beast` number, since 2 + 0 + 8 + 52 + 7 + 577 + 7 + 1 + 6 + 6 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4761901 + ... + 5181336.

It is an arithmetic number, because the mean of its divisors is an integer number (96170997936).

Almost surely, 2^{2085275777166} is an apocalyptic number.

2085275777166 is an abundant number, since it is smaller than the sum of its proper divisors (2530932123762).

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

2085275777166 is a wasteful number, since it uses less digits than its factorization.

2085275777166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9943497 (or 9943494 counting only the distinct ones).

The product of its (nonzero) digits is 69148800, while the sum is 63.

The spelling of 2085275777166 in words is "two trillion, eighty-five billion, two hundred seventy-five million, seven hundred seventy-seven thousand, one hundred sixty-six".