168899378 has 8 divisors (see below), whose sum is σ = 253813872. Its totient is φ = 84294756.

The previous prime is 168899363. The next prime is 168899387. The reversal of 168899378 is 873998861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76100 + ... + 78287.

It is an arithmetic number, because the mean of its divisors is an integer number (31726734).

Almost surely, 2^168899378 is an apocalyptic number.

168899378 is a deficient number, since it is larger than the sum of its proper divisors (84914494).

168899378 is a wasteful number, since it uses less digits than its factorization.

168899378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154936.

The product of its digits is 5225472, while the sum is 59.

The square root of 168899378 is about 12996.1293468479. The cubic root of 168899378 is about 552.7677324871.

The spelling of 168899378 in words is "one hundred sixty-eight million, eight hundred ninety-nine thousand, three hundred seventy-eight".