1671673161 has 8 divisors (see below), whose sum is σ = 2234457504. Its totient is φ = 1111668800.

The previous prime is 1671673147. The next prime is 1671673163. The reversal of 1671673161 is 1613761761.

It is a happy number.

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 1671673161 - 2¹⁵ = 1671640393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1671673163) 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, 693591 + ... + 695996.

It is an arithmetic number, because the mean of its divisors is an integer number (279307188).

Almost surely, 2^1671673161 is an apocalyptic number.

It is an amenable number.

1671673161 is a deficient number, since it is larger than the sum of its proper divisors (562784343).

1671673161 is a wasteful number, since it uses less digits than its factorization.

1671673161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389991.

The product of its digits is 31752, while the sum is 39.

The square root of 1671673161 is about 40886.0998506828. The cubic root of 1671673161 is about 1186.8170858416.

The spelling of 1671673161 in words is "one billion, six hundred seventy-one million, six hundred seventy-three thousand, one hundred sixty-one".