671161016670 has 32 divisors (see below), whose sum is σ = 1611070987680. Its totient is φ = 178944654720.

The previous prime is 671161016663. The next prime is 671161016671. The reversal of 671161016670 is 76610161176.

It is a super-2 number, since 2×671161016670² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671161016671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1803121 + ... + 2143260.

It is an arithmetic number, because the mean of its divisors is an integer number (50345968365).

Almost surely, 2^671161016670 is an apocalyptic number.

671161016670 is an abundant number, since it is smaller than the sum of its proper divisors (939909971010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671161016670 is a wasteful number, since it uses less digits than its factorization.

671161016670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952060.

The product of its (nonzero) digits is 63504, while the sum is 42.

The spelling of 671161016670 in words is "six hundred seventy-one billion, one hundred sixty-one million, sixteen thousand, six hundred seventy".