1685016431552 has 28 divisors (see below), whose sum is σ = 3365001982200. Its totient is φ = 837141916416.

The previous prime is 1685016431521. The next prime is 1685016431561. The reversal of 1685016431552 is 2551346105861.

It is a super-2 number, since 2×1685016431552² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1685016431497 and 1685016431506.

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 3 ways as a sum of consecutive naturals, for example, 83838302 + ... + 83858397.

Almost surely, 2^{1685016431552} is an apocalyptic number.

It is an amenable number.

1685016431552 is a deficient number, since it is larger than the sum of its proper divisors (1679985550648).

1685016431552 is a wasteful number, since it uses less digits than its factorization.

1685016431552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167696868 (or 167696858 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 1685016431552 in words is "one trillion, six hundred eighty-five billion, sixteen million, four hundred thirty-one thousand, five hundred fifty-two".