1685016668635 has 8 divisors (see below), whose sum is σ = 2029481332416. Its totient is φ = 1343039114880.

The previous prime is 1685016668611. The next prime is 1685016668663. The reversal of 1685016668635 is 5368666105861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1685016668635 - 2¹³ = 1685016660443 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621776014 + ... + 621778723.

It is an arithmetic number, because the mean of its divisors is an integer number (253685166552).

Almost surely, 2^{1685016668635} is an apocalyptic number.

1685016668635 is a deficient number, since it is larger than the sum of its proper divisors (344464663781).

1685016668635 is a wasteful number, since it uses less digits than its factorization.

1685016668635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243555013.

The product of its (nonzero) digits is 37324800, while the sum is 61.

The spelling of 1685016668635 in words is "one trillion, six hundred eighty-five billion, sixteen million, six hundred sixty-eight thousand, six hundred thirty-five".