168899210190 has 48 divisors (see below), whose sum is σ = 439185002256. Its totient is φ = 45034963200.

The previous prime is 168899210159. The next prime is 168899210191. The reversal of 168899210190 is 91012998861.

168899210190 is a `hidden beast` number, since 168 + 89 + 9 + 210 + 190 = 666.

It is a super-2 number, since 2×168899210190² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168899210191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 787350 + ... + 978630.

It is an arithmetic number, because the mean of its divisors is an integer number (9149687547).

Almost surely, 2^168899210190 is an apocalyptic number.

168899210190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168899210190 is an abundant number, since it is smaller than the sum of its proper divisors (270285792066).

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

168899210190 is a wasteful number, since it uses less digits than its factorization.

168899210190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201105 (or 201102 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 54.

The spelling of 168899210190 in words is "one hundred sixty-eight billion, eight hundred ninety-nine million, two hundred ten thousand, one hundred ninety".