675556336809 has 20 divisors (see below), whose sum is σ = 1016424596880. Its totient is φ = 447130805400.

The previous prime is 675556336771. The next prime is 675556336823. The reversal of 675556336809 is 908633655576.

675556336809 is a `hidden beast` number, since 6 + 7 + 5 + 5 + 563 + 3 + 68 + 0 + 9 = 666.

It is not a de Polignac number, because 675556336809 - 2⁷ = 675556336681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (675556336309) 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 19 ways as a sum of consecutive naturals, for example, 29989467 + ... + 30011984.

It is an arithmetic number, because the mean of its divisors is an integer number (50821229844).

Almost surely, 2^675556336809 is an apocalyptic number.

It is an amenable number.

675556336809 is a deficient number, since it is larger than the sum of its proper divisors (340868260071).

675556336809 is a wasteful number, since it uses less digits than its factorization.

675556336809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60001602 (or 60001593 counting only the distinct ones).

The product of its (nonzero) digits is 122472000, while the sum is 63.

The spelling of 675556336809 in words is "six hundred seventy-five billion, five hundred fifty-six million, three hundred thirty-six thousand, eight hundred nine".