168196984850 has 24 divisors (see below), whose sum is σ = 314212554660. Its totient is φ = 66984995520.

The previous prime is 168196984849. The next prime is 168196984861. The reversal of 168196984850 is 58489691861.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 141340658209 + 26856326641 = 375953^2 + 163879^2 .

It is a super-2 number, since 2×168196984850² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7333397 + ... + 7356296.

Almost surely, 2^168196984850 is an apocalyptic number.

168196984850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168196984850 is a deficient number, since it is larger than the sum of its proper divisors (146015569810).

168196984850 is a wasteful number, since it uses less digits than its factorization.

168196984850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14689934 (or 14689929 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 65.

The spelling of 168196984850 in words is "one hundred sixty-eight billion, one hundred ninety-six million, nine hundred eighty-four thousand, eight hundred fifty".