16850165197 has 4 divisors (see below), whose sum is σ = 16851832380. Its totient is φ = 16848498016.

The previous prime is 16850165183. The next prime is 16850165207. The reversal of 16850165197 is 79156105861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79156105861 = 7 ⋅11308015123.

It can be written as a sum of positive squares in 2 ways, for example, as 10944088996 + 5906076201 = 104614^2 + 76851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16850165197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16850165197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16850165107) 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, 818338 + ... + 838675.

It is an arithmetic number, because the mean of its divisors is an integer number (4212958095).

Almost surely, 2^16850165197 is an apocalyptic number.

It is an amenable number.

16850165197 is a deficient number, since it is larger than the sum of its proper divisors (1667183).

16850165197 is a wasteful number, since it uses less digits than its factorization.

16850165197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667182.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 16850165197 in words is "sixteen billion, eight hundred fifty million, one hundred sixty-five thousand, one hundred ninety-seven".