168355050373 has 6 divisors (see below), whose sum is σ = 170513108934. Its totient is φ = 166223967624.

The previous prime is 168355050361. The next prime is 168355050401. The reversal of 168355050373 is 373050553861.

It can be written as a sum of positive squares in only one way, i.e., 162201118564 + 6153931809 = 402742^2 + 78447^2 .

It is a de Polignac number, because none of the positive numbers 2^k-168355050373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168355050323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13481586 + ... + 13494067.

It is an arithmetic number, because the mean of its divisors is an integer number (28418851489).

Almost surely, 2^168355050373 is an apocalyptic number.

It is an amenable number.

168355050373 is a deficient number, since it is larger than the sum of its proper divisors (2158058561).

168355050373 is an frugal number, since it uses more digits than its factorization.

168355050373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26975811 (or 26975732 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 168355050373 in words is "one hundred sixty-eight billion, three hundred fifty-five million, fifty thousand, three hundred seventy-three".