168350091872 has 12 divisors (see below), whose sum is σ = 331439243436. Its totient is φ = 84175045920.

The previous prime is 168350091857. The next prime is 168350091883. The reversal of 168350091872 is 278190053861.

It is a self number, because there is not a number n which added to its sum of digits gives 168350091872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630470154 + ... + 2630470217.

It is an arithmetic number, because the mean of its divisors is an integer number (27619936953).

Almost surely, 2^168350091872 is an apocalyptic number.

It is an amenable number.

168350091872 is a deficient number, since it is larger than the sum of its proper divisors (163089151564).

168350091872 is an equidigital number, since it uses as much as digits as its factorization.

168350091872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260940381 (or 5260940373 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 168350091872 in words is "one hundred sixty-eight billion, three hundred fifty million, ninety-one thousand, eight hundred seventy-two".