168198536 has 16 divisors (see below), whose sum is σ = 344042640. Its totient is φ = 76453840.

The previous prime is 168198473. The next prime is 168198539. The reversal of 168198536 is 635891861.

It is not an unprimeable number, because it can be changed into a prime (168198539) 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, 955586 + ... + 955761.

It is an arithmetic number, because the mean of its divisors is an integer number (21502665).

Almost surely, 2^168198536 is an apocalyptic number.

It is an amenable number.

168198536 is an abundant number, since it is smaller than the sum of its proper divisors (175844104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168198536 is a wasteful number, since it uses less digits than its factorization.

168198536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911364 (or 1911360 counting only the distinct ones).

The product of its digits is 311040, while the sum is 47.

The square root of 168198536 is about 12969.1378279360. The cubic root of 168198536 is about 552.0021091427.

The spelling of 168198536 in words is "one hundred sixty-eight million, one hundred ninety-eight thousand, five hundred thirty-six".