6855165954 has 72 divisors (see below), whose sum is σ = 18606910140. Its totient is φ = 1807952832.

The previous prime is 6855165937. The next prime is 6855165983. The reversal of 6855165954 is 4595615586.

It can be written as a sum of positive squares in 2 ways, for example, as 4934360025 + 1920805929 = 70245^2 + 43827^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6855165954.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 287469 + ... + 310400.

Almost surely, 2^6855165954 is an apocalyptic number.

6855165954 is an abundant number, since it is smaller than the sum of its proper divisors (11751744186).

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

6855165954 is a wasteful number, since it uses less digits than its factorization.

6855165954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597904 (or 597894 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 54.

The square root of 6855165954 is about 82795.9295738625. The cubic root of 6855165954 is about 1899.6459131480.

The spelling of 6855165954 in words is "six billion, eight hundred fifty-five million, one hundred sixty-five thousand, nine hundred fifty-four".