675555173661 has 8 divisors (see below), whose sum is σ = 900747254560. Its totient is φ = 450366604272.

The previous prime is 675555173647. The next prime is 675555173717. The reversal of 675555173661 is 166371555576.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 675555173661 - 2¹⁵ = 675555140893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675555173611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390295 + ... + 1226148.

It is an arithmetic number, because the mean of its divisors is an integer number (112593406820).

Almost surely, 2^675555173661 is an apocalyptic number.

It is an amenable number.

675555173661 is a deficient number, since it is larger than the sum of its proper divisors (225192080899).

675555173661 is a wasteful number, since it uses less digits than its factorization.

675555173661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755755.

The product of its digits is 19845000, while the sum is 57.

The spelling of 675555173661 in words is "six hundred seventy-five billion, five hundred fifty-five million, one hundred seventy-three thousand, six hundred sixty-one".