168510000090 has 32 divisors (see below), whose sum is σ = 405024975936. Its totient is φ = 44869224960.

The previous prime is 168510000083. The next prime is 168510000121. The reversal of 168510000090 is 90000015861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4152916 + ... + 4193295.

It is an arithmetic number, because the mean of its divisors is an integer number (12657030498).

Almost surely, 2^168510000090 is an apocalyptic number.

168510000090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168510000090 is an abundant number, since it is smaller than the sum of its proper divisors (236514975846).

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

168510000090 is a wasteful number, since it uses less digits than its factorization.

168510000090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346894.

The product of its (nonzero) digits is 2160, while the sum is 30.

The spelling of 168510000090 in words is "one hundred sixty-eight billion, five hundred ten million, ninety", and thus it is an aban number.