1680186022242 has 48 divisors (see below), whose sum is σ = 4209696856512. Its totient is φ = 443125982880.

The previous prime is 1680186022231. The next prime is 1680186022357. The reversal of 1680186022242 is 2422206810861.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1680186022194 and 1680186022203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219800734 + ... + 219808377.

It is an arithmetic number, because the mean of its divisors is an integer number (87702017844).

Almost surely, 2^{1680186022242} is an apocalyptic number.

1680186022242 is an abundant number, since it is smaller than the sum of its proper divisors (2529510834270).

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

1680186022242 is a wasteful number, since it uses less digits than its factorization.

1680186022242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439609143 (or 439609136 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 1680186022242 in words is "one trillion, six hundred eighty billion, one hundred eighty-six million, twenty-two thousand, two hundred forty-two".