168809850424 has 8 divisors (see below), whose sum is σ = 316518469560. Its totient is φ = 84404925208.

The previous prime is 168809850409. The next prime is 168809850427. The reversal of 168809850424 is 424058908861.

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 (168809850427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550615644 + ... + 10550615659.

It is an arithmetic number, because the mean of its divisors is an integer number (39564808695).

Almost surely, 2^168809850424 is an apocalyptic number.

It is an amenable number.

168809850424 is a deficient number, since it is larger than the sum of its proper divisors (147708619136).

168809850424 is a wasteful number, since it uses less digits than its factorization.

168809850424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21101231309 (or 21101231305 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 168809850424 in words is "one hundred sixty-eight billion, eight hundred nine million, eight hundred fifty thousand, four hundred twenty-four".