67725166 has 16 divisors (see below), whose sum is σ = 103794768. Its totient is φ = 33134400.

The previous prime is 67725143. The next prime is 67725169. The reversal of 67725166 is 66152776.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67725169) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17356 + ... + 20896.

It is an arithmetic number, because the mean of its divisors is an integer number (6487173).

Almost surely, 2^67725166 is an apocalyptic number.

67725166 is a deficient number, since it is larger than the sum of its proper divisors (36069602).

67725166 is a wasteful number, since it uses less digits than its factorization.

67725166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747.

The product of its digits is 105840, while the sum is 40.

The square root of 67725166 is about 8229.5301202438. The cubic root of 67725166 is about 407.6148767171.

The spelling of 67725166 in words is "sixty-seven million, seven hundred twenty-five thousand, one hundred sixty-six".