671194071752205 has 16 divisors (see below), whose sum is σ = 1073937209376384. Its totient is φ = 357961273410240.

The previous prime is 671194071752167. The next prime is 671194071752221. The reversal of 671194071752205 is 502257170491176.

It is not a de Polignac number, because 671194071752205 - 2⁷ = 671194071752077 is a prime.

It is a super-2 number, since 2×671194071752205² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555513354 + ... + 556720283.

It is an arithmetic number, because the mean of its divisors is an integer number (67121075586024).

Almost surely, 2^{671194071752205} is an apocalyptic number.

It is an amenable number.

671194071752205 is a deficient number, since it is larger than the sum of its proper divisors (402743137624179).

671194071752205 is a wasteful number, since it uses less digits than its factorization.

671194071752205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112273876.

The product of its (nonzero) digits is 7408800, while the sum is 57.

The spelling of 671194071752205 in words is "six hundred seventy-one trillion, one hundred ninety-four billion, seventy-one million, seven hundred fifty-two thousand, two hundred five".