158968197318 has 32 divisors (see below), whose sum is σ = 363518090496. Its totient is φ = 45399208608.

The previous prime is 158968197277. The next prime is 158968197397. The reversal of 158968197318 is 813791869851.

It is a congruent number.

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, 749521 + ... + 937932.

It is an arithmetic number, because the mean of its divisors is an integer number (11359940328).

Almost surely, 2^158968197318 is an apocalyptic number.

158968197318 is an abundant number, since it is smaller than the sum of its proper divisors (204549893178).

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

158968197318 is a wasteful number, since it uses less digits than its factorization.

158968197318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689708.

The product of its digits is 26127360, while the sum is 66.

The spelling of 158968197318 in words is "one hundred fifty-eight billion, nine hundred sixty-eight million, one hundred ninety-seven thousand, three hundred eighteen".