1670165164609 has 4 divisors (see below), whose sum is σ = 1670534429616. Its totient is φ = 1669795899604.

The previous prime is 1670165164589. The next prime is 1670165164627. The reversal of 1670165164609 is 9064615610761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1670165164609 - 2¹⁵ = 1670165131841 is a prime.

It is a super-2 number, since 2×1670165164609² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670165164649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184625719 + ... + 184634764.

It is an arithmetic number, because the mean of its divisors is an integer number (417633607404).

Almost surely, 2^{1670165164609} is an apocalyptic number.

It is an amenable number.

1670165164609 is a deficient number, since it is larger than the sum of its proper divisors (369265007).

1670165164609 is an equidigital number, since it uses as much as digits as its factorization.

1670165164609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369265006.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 1670165164609 in words is "one trillion, six hundred seventy billion, one hundred sixty-five million, one hundred sixty-four thousand, six hundred nine".