1672616165 has 16 divisors (see below), whose sum is σ = 2200965696. Its totient is φ = 1210137600.

The previous prime is 1672616159. The next prime is 1672616173. The reversal of 1672616165 is 5616162761.

It is not a de Polignac number, because 1672616165 - 2⁸ = 1672615909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68171 + ... + 89400.

It is an arithmetic number, because the mean of its divisors is an integer number (137560356).

Almost surely, 2^1672616165 is an apocalyptic number.

It is an amenable number.

1672616165 is a deficient number, since it is larger than the sum of its proper divisors (528349531).

1672616165 is a wasteful number, since it uses less digits than its factorization.

1672616165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157780.

The product of its digits is 90720, while the sum is 41.

The square root of 1672616165 is about 40897.6303103248. The cubic root of 1672616165 is about 1187.0402081813.

The spelling of 1672616165 in words is "one billion, six hundred seventy-two million, six hundred sixteen thousand, one hundred sixty-five".