1683564330856 has 16 divisors (see below), whose sum is σ = 3156920504100. Its totient is φ = 841718863104.

The previous prime is 1683564330839. The next prime is 1683564330911. The reversal of 1683564330856 is 6580334653861.

It can be written as a sum of positive squares in 2 ways, for example, as 1664445737956 + 19118592900 = 1290134^2 + 138270^2 .

It is a super-2 number, since 2×1683564330856² (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 1683564330856.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7799665 + ... + 8012608.

Almost surely, 2^{1683564330856} is an apocalyptic number.

It is an amenable number.

1683564330856 is a deficient number, since it is larger than the sum of its proper divisors (1473356173244).

1683564330856 is a wasteful number, since it uses less digits than its factorization.

1683564330856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15825588 (or 15825584 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 58.

The spelling of 1683564330856 in words is "one trillion, six hundred eighty-three billion, five hundred sixty-four million, three hundred thirty thousand, eight hundred fifty-six".