168294086550 has 144 divisors (see below), whose sum is σ = 479243634480. Its totient is φ = 42194718720.

The previous prime is 168294086501. The next prime is 168294086573. The reversal of 168294086550 is 55680492861.

168294086550 is a `hidden beast` number, since 1 + 6 + 8 + 2 + 9 + 4 + 0 + 86 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7707949 + ... + 7729751.

It is an arithmetic number, because the mean of its divisors is an integer number (3328080795).

Almost surely, 2^168294086550 is an apocalyptic number.

168294086550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 168294086550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239621817240).

168294086550 is an abundant number, since it is smaller than the sum of its proper divisors (310949547930).

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

168294086550 is a wasteful number, since it uses less digits than its factorization.

168294086550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22847 (or 22839 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 168294086550 in words is "one hundred sixty-eight billion, two hundred ninety-four million, eighty-six thousand, five hundred fifty".