1685335353352 has 24 divisors (see below), whose sum is σ = 3675922774110. Its totient is φ = 722286579840.

The previous prime is 1685335353311. The next prime is 1685335353367. The reversal of 1685335353352 is 2533535335861.

It can be written as a sum of positive squares in only one way, i.e., 1489976657316 + 195358696036 = 1220646^2 + 441994^2 .

It is a super-2 number, since 2×1685335353352² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1685335353352.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2149662049 + ... + 2149662832.

Almost surely, 2^{1685335353352} is an apocalyptic number.

It is an amenable number.

1685335353352 is an abundant number, since it is smaller than the sum of its proper divisors (1990587420758).

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

1685335353352 is a wasteful number, since it uses less digits than its factorization.

1685335353352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4299324901 (or 4299324890 counting only the distinct ones).

The product of its digits is 14580000, while the sum is 52.

The spelling of 1685335353352 in words is "one trillion, six hundred eighty-five billion, three hundred thirty-five million, three hundred fifty-three thousand, three hundred fifty-two".