671136631177 has 8 divisors (see below), whose sum is σ = 685457500032. Its totient is φ = 656817486000.

The previous prime is 671136631129. The next prime is 671136631183. The reversal of 671136631177 is 771136631176.

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

It is a cyclic number.

It is not a de Polignac number, because 671136631177 - 2³⁹ = 121380817289 is a prime.

It is a super-2 number, since 2×671136631177² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671136631177.

It is not an unprimeable number, because it can be changed into a prime (671136631577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371902 + ... + 1216792.

It is an arithmetic number, because the mean of its divisors is an integer number (85682187504).

Almost surely, 2^671136631177 is an apocalyptic number.

It is an amenable number.

671136631177 is a deficient number, since it is larger than the sum of its proper divisors (14320868855).

671136631177 is a wasteful number, since it uses less digits than its factorization.

671136631177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861839.

The product of its digits is 666792, while the sum is 49.

Subtracting 671136631177 from its reverse (771136631176), we obtain a palindrome (99999999999).

The spelling of 671136631177 in words is "six hundred seventy-one billion, one hundred thirty-six million, six hundred thirty-one thousand, one hundred seventy-seven".