168378229459 has 16 divisors (see below), whose sum is σ = 189673675776. Its totient is φ = 148084120800.

The previous prime is 168378229433. The next prime is 168378229471. The reversal of 168378229459 is 954922873861.

It is not a de Polignac number, because 168378229459 - 2¹⁷ = 168378098387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168378229459.

It is not an unprimeable number, because it can be changed into a prime (168378229429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965349 + ... + 1126345.

It is an arithmetic number, because the mean of its divisors is an integer number (11854604736).

Almost surely, 2^168378229459 is an apocalyptic number.

168378229459 is a deficient number, since it is larger than the sum of its proper divisors (21295446317).

168378229459 is a wasteful number, since it uses less digits than its factorization.

168378229459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164106.

The product of its digits is 52254720, while the sum is 64.

The spelling of 168378229459 in words is "one hundred sixty-eight billion, three hundred seventy-eight million, two hundred twenty-nine thousand, four hundred fifty-nine".