677161377171 has 12 divisors (see below), whose sum is σ = 980924635600. Its totient is φ = 450147389040.

The previous prime is 677161377149. The next prime is 677161377203. The reversal of 677161377171 is 171773161776.

677161377171 is a `hidden beast` number, since 6 + 7 + 7 + 1 + 613 + 7 + 7 + 17 + 1 = 666.

It is not a de Polignac number, because 677161377171 - 2¹⁰ = 677161376147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677161377131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107790775 + ... + 107797056.

Almost surely, 2^677161377171 is an apocalyptic number.

677161377171 is a deficient number, since it is larger than the sum of its proper divisors (303763258429).

677161377171 is a wasteful number, since it uses less digits than its factorization.

677161377171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215588186 (or 215588183 counting only the distinct ones).

The product of its digits is 1815156, while the sum is 54.

The spelling of 677161377171 in words is "six hundred seventy-seven billion, one hundred sixty-one million, three hundred seventy-seven thousand, one hundred seventy-one".