199165617653 has 8 divisors (see below), whose sum is σ = 202146185088. Its totient is φ = 196185284064.

The previous prime is 199165617601. The next prime is 199165617667. The reversal of 199165617653 is 356716561991.

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 199165617653 - 2¹⁴ = 199165601269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199165617592 and 199165617601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199165617683) 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, 2467625 + ... + 2547057.

It is an arithmetic number, because the mean of its divisors is an integer number (25268273136).

Almost surely, 2^199165617653 is an apocalyptic number.

It is an amenable number.

199165617653 is a deficient number, since it is larger than the sum of its proper divisors (2980567435).

199165617653 is an equidigital number, since it uses as much as digits as its factorization.

199165617653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116923.

The product of its digits is 9185400, while the sum is 59.

The spelling of 199165617653 in words is "one hundred ninety-nine billion, one hundred sixty-five million, six hundred seventeen thousand, six hundred fifty-three".