1680544255 has 32 divisors (see below), whose sum is σ = 2302530048. Its totient is φ = 1168473600.

The previous prime is 1680544253. The next prime is 1680544291. The reversal of 1680544255 is 5524450861.

It is not a de Polignac number, because 1680544255 - 2¹ = 1680544253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680544253) 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 31 ways as a sum of consecutive naturals, for example, 63285 + ... + 85825.

It is an arithmetic number, because the mean of its divisors is an integer number (71954064).

Almost surely, 2^1680544255 is an apocalyptic number.

1680544255 is a deficient number, since it is larger than the sum of its proper divisors (621985793).

1680544255 is a wasteful number, since it uses less digits than its factorization.

1680544255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22627.

The product of its (nonzero) digits is 192000, while the sum is 40.

The square root of 1680544255 is about 40994.4417573895. The cubic root of 1680544255 is about 1188.9127500751.

The spelling of 1680544255 in words is "one billion, six hundred eighty million, five hundred forty-four thousand, two hundred fifty-five".