168573297208 has 8 divisors (see below), whose sum is σ = 316074932280. Its totient is φ = 84286648600.

The previous prime is 168573297149. The next prime is 168573297209. The reversal of 168573297208 is 802792375861.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168573297209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10535831068 + ... + 10535831083.

It is an arithmetic number, because the mean of its divisors is an integer number (39509366535).

Almost surely, 2^168573297208 is an apocalyptic number.

It is an amenable number.

168573297208 is a deficient number, since it is larger than the sum of its proper divisors (147501635072).

168573297208 is a wasteful number, since it uses less digits than its factorization.

168573297208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21071662157 (or 21071662153 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 168573297208 in words is "one hundred sixty-eight billion, five hundred seventy-three million, two hundred ninety-seven thousand, two hundred eight".