671080068081 has 48 divisors (see below), whose sum is σ = 991759676544. Its totient is φ = 437112329472.

The previous prime is 671080068053. The next prime is 671080068083. The reversal of 671080068081 is 180860080176.

It is not a de Polignac number, because 671080068081 - 2⁹ = 671080067569 is a prime.

It is a super-2 number, since 2×671080068081² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (671080068083) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155089140 + ... + 155093466.

It is an arithmetic number, because the mean of its divisors is an integer number (20661659928).

Almost surely, 2^671080068081 is an apocalyptic number.

It is an amenable number.

671080068081 is a deficient number, since it is larger than the sum of its proper divisors (320679608463).

671080068081 is a wasteful number, since it uses less digits than its factorization.

671080068081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670 (or 5667 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 671080068081 in words is "six hundred seventy-one billion, eighty million, sixty-eight thousand, eighty-one".