168349554 has 24 divisors (see below), whose sum is σ = 365934972. Its totient is φ = 55935360.

The previous prime is 168349471. The next prime is 168349603. The reversal of 168349554 is 455943861.

168349554 is a `hidden beast` number, since 1 + 68 + 34 + 9 + 554 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 118265625 + 50083929 = 10875^2 + 7077^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9307 + ... + 20574.

Almost surely, 2^168349554 is an apocalyptic number.

168349554 is an abundant number, since it is smaller than the sum of its proper divisors (197585418).

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

168349554 is a wasteful number, since it uses less digits than its factorization.

168349554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30202 (or 30199 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 168349554 is about 12974.9587282581. The cubic root of 168349554 is about 552.1672657880.

The spelling of 168349554 in words is "one hundred sixty-eight million, three hundred forty-nine thousand, five hundred fifty-four".