674776161 has 12 divisors (see below), whose sum is σ = 975925392. Its totient is φ = 449274456.

The previous prime is 674776159. The next prime is 674776177. The reversal of 674776161 is 161677476.

674776161 is a `hidden beast` number, since 67 + 477 + 61 + 61 = 666.

It is not a de Polignac number, because 674776161 - 2¹ = 674776159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674776181) 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, 40551 + ... + 54716.

It is an arithmetic number, because the mean of its divisors is an integer number (81327116).

Almost surely, 2^674776161 is an apocalyptic number.

It is an amenable number.

674776161 is a deficient number, since it is larger than the sum of its proper divisors (301149231).

674776161 is a wasteful number, since it uses less digits than its factorization.

674776161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96060 (or 96057 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 674776161 is about 25976.4539727808. The cubic root of 674776161 is about 877.1083464168.

The spelling of 674776161 in words is "six hundred seventy-four million, seven hundred seventy-six thousand, one hundred sixty-one".