1685168352 has 72 divisors (see below), whose sum is σ = 5476803696. Its totient is φ = 481476096.

The previous prime is 1685168351. The next prime is 1685168357. The reversal of 1685168352 is 2538615861.

1685168352 is a `hidden beast` number, since 1 + 6 + 8 + 516 + 83 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 1685168298 and 1685168307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685168351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415933 + ... + 419964.

It is an arithmetic number, because the mean of its divisors is an integer number (76066718).

Almost surely, 2^1685168352 is an apocalyptic number.

1685168352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1685168352 is an abundant number, since it is smaller than the sum of its proper divisors (3791635344).

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

1685168352 is a wasteful number, since it uses less digits than its factorization.

1685168352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835920 (or 835909 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 1685168352 is about 41050.8020871700. The cubic root of 1685168352 is about 1190.0022013471.

The spelling of 1685168352 in words is "one billion, six hundred eighty-five million, one hundred sixty-eight thousand, three hundred fifty-two".