1680554042915 has 32 divisors (see below), whose sum is σ = 2316047212800. Its totient is φ = 1157763784320.

The previous prime is 1680554042903. The next prime is 1680554042917. The reversal of 1680554042915 is 5192404550861.

It is not a de Polignac number, because 1680554042915 - 2³² = 1676259075619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1680554042917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9740621 + ... + 9911649.

It is an arithmetic number, because the mean of its divisors is an integer number (72376475400).

Almost surely, 2^{1680554042915} is an apocalyptic number.

1680554042915 is a deficient number, since it is larger than the sum of its proper divisors (635493169885).

1680554042915 is a wasteful number, since it uses less digits than its factorization.

1680554042915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180467.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 1680554042915 in words is "one trillion, six hundred eighty billion, five hundred fifty-four million, forty-two thousand, nine hundred fifteen".