1685520185350 has 12 divisors (see below), whose sum is σ = 3135067544844. Its totient is φ = 674208074120.

The previous prime is 1685520185347. The next prime is 1685520185411. The reversal of 1685520185350 is 535810255861.

It is a junction number, because it is equal to n+sod(n) for n = 1685520185294 and 1685520185303.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 16855201804 + ... + 16855201903.

It is an arithmetic number, because the mean of its divisors is an integer number (261255628737).

Almost surely, 2^{1685520185350} is an apocalyptic number.

1685520185350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1685520185350 is a deficient number, since it is larger than the sum of its proper divisors (1449547359494).

1685520185350 is a wasteful number, since it uses less digits than its factorization.

1685520185350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33710403719 (or 33710403714 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 49.

The spelling of 1685520185350 in words is "one trillion, six hundred eighty-five billion, five hundred twenty million, one hundred eighty-five thousand, three hundred fifty".