671085032181 has 8 divisors (see below), whose sum is σ = 900269491680. Its totient is φ = 444645297072.

The previous prime is 671085032179. The next prime is 671085032209. The reversal of 671085032181 is 181230580176.

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

It is not a de Polignac number, because 671085032181 - 2¹ = 671085032179 is a prime.

It is a super-2 number, since 2×671085032181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671085032081) 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, 686180526 + ... + 686181503.

It is an arithmetic number, because the mean of its divisors is an integer number (112533686460).

Almost surely, 2^671085032181 is an apocalyptic number.

It is an amenable number.

671085032181 is a deficient number, since it is larger than the sum of its proper divisors (229184459499).

671085032181 is a wasteful number, since it uses less digits than its factorization.

671085032181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372362195.

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 671085032181 in words is "six hundred seventy-one billion, eighty-five million, thirty-two thousand, one hundred eighty-one".