671113552605 has 8 divisors (see below), whose sum is σ = 1073781684192. Its totient is φ = 357927228048.

The previous prime is 671113552567. The next prime is 671113552609. The reversal of 671113552605 is 506255311176.

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

It is not a de Polignac number, because 671113552605 - 2⁶ = 671113552541 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671113552609) 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 7 ways as a sum of consecutive naturals, for example, 22370451739 + ... + 22370451768.

It is an arithmetic number, because the mean of its divisors is an integer number (134222710524).

Almost surely, 2^671113552605 is an apocalyptic number.

It is an amenable number.

671113552605 is a deficient number, since it is larger than the sum of its proper divisors (402668131587).

671113552605 is a wasteful number, since it uses less digits than its factorization.

671113552605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44740903515.

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 671113552605 in words is "six hundred seventy-one billion, one hundred thirteen million, five hundred fifty-two thousand, six hundred five".