1671064165 has 16 divisors (see below), whose sum is σ = 2049100416. Its totient is φ = 1307924800.

The previous prime is 1671064163. The next prime is 1671064177. The reversal of 1671064165 is 5614601761.

It is not a de Polignac number, because 1671064165 - 2¹ = 1671064163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671064163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28539 + ... + 64471.

It is an arithmetic number, because the mean of its divisors is an integer number (128068776).

Almost surely, 2^1671064165 is an apocalyptic number.

It is an amenable number.

1671064165 is a deficient number, since it is larger than the sum of its proper divisors (378036251).

1671064165 is a wasteful number, since it uses less digits than its factorization.

1671064165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36140.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1671064165 is about 40878.6517023250. The cubic root of 1671064165 is about 1186.6729478882.

The spelling of 1671064165 in words is "one billion, six hundred seventy-one million, sixty-four thousand, one hundred sixty-five".