66682054 has 16 divisors (see below), whose sum is σ = 103501440. Its totient is φ = 32186880.

The previous prime is 66682051. The next prime is 66682061. The reversal of 66682054 is 45028666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66682051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30502 + ... + 32614.

It is an arithmetic number, because the mean of its divisors is an integer number (6468840).

Almost surely, 2^66682054 is an apocalyptic number.

66682054 is a deficient number, since it is larger than the sum of its proper divisors (36819386).

66682054 is a wasteful number, since it uses less digits than its factorization.

66682054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 66682054 is about 8165.9080327910. The cubic root of 66682054 is about 405.5113269282.

The spelling of 66682054 in words is "sixty-six million, six hundred eighty-two thousand, fifty-four".