133368016 has 20 divisors (see below), whose sum is σ = 261067492. Its totient is φ = 65995776.

The previous prime is 133367977. The next prime is 133368041. The reversal of 133368016 is 610863331.

It can be written as a sum of positive squares in 2 ways, for example, as 72590400 + 60777616 = 8520^2 + 7796^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 41415 + ... + 44518.

Almost surely, 2^133368016 is an apocalyptic number.

133368016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133368016 is a deficient number, since it is larger than the sum of its proper divisors (127699476).

133368016 is an equidigital number, since it uses as much as digits as its factorization.

133368016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86038 (or 86032 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 133368016 is about 11548.5070896631. The cubic root of 133368016 is about 510.9172471798.

The spelling of 133368016 in words is "one hundred thirty-three million, three hundred sixty-eight thousand, sixteen".