6885220185 has 32 divisors (see below), whose sum is σ = 12282238080. Its totient is φ = 3659563584.

The previous prime is 6885220183. The next prime is 6885220213. The reversal of 6885220185 is 5810225886.

It is not a de Polignac number, because 6885220185 - 2¹ = 6885220183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6885220185.

It is not an unprimeable number, because it can be changed into a prime (6885220183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47479 + ... + 126588.

It is an arithmetic number, because the mean of its divisors is an integer number (383819940).

Almost surely, 2^6885220185 is an apocalyptic number.

It is an amenable number.

6885220185 is a deficient number, since it is larger than the sum of its proper divisors (5397017895).

6885220185 is a wasteful number, since it uses less digits than its factorization.

6885220185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174374 (or 174368 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The square root of 6885220185 is about 82977.2269059409. The cubic root of 6885220185 is about 1902.4179912076.

The spelling of 6885220185 in words is "six billion, eight hundred eighty-five million, two hundred twenty thousand, one hundred eighty-five".