1680457730355 has 24 divisors (see below), whose sum is σ = 2913166346688. Its totient is φ = 896129369856.

The previous prime is 1680457730353. The next prime is 1680457730377. The reversal of 1680457730355 is 5530377540861.

1680457730355 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 4 + 577 + 30 + 35 + 5 = 666.

It is not a de Polignac number, because 1680457730355 - 2¹ = 1680457730353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1680457730353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2034742 + ... + 2738811.

It is an arithmetic number, because the mean of its divisors is an integer number (121381931112).

Almost surely, 2^{1680457730355} is an apocalyptic number.

1680457730355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1680457730355 is a deficient number, since it is larger than the sum of its proper divisors (1232708616333).

1680457730355 is a wasteful number, since it uses less digits than its factorization.

1680457730355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4781387 (or 4781384 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 54.

The spelling of 1680457730355 in words is "one trillion, six hundred eighty billion, four hundred fifty-seven million, seven hundred thirty thousand, three hundred fifty-five".