66504254 has 16 divisors (see below), whose sum is σ = 101400000. Its totient is φ = 32707584.

The previous prime is 66504253. The next prime is 66504257. The reversal of 66504254 is 45240566.

It is a self number, because there is not a number n which added to its sum of digits gives 66504254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66504253) 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, 52622 + ... + 53870.

It is an arithmetic number, because the mean of its divisors is an integer number (6337500).

Almost surely, 2^66504254 is an apocalyptic number.

66504254 is a deficient number, since it is larger than the sum of its proper divisors (34895746).

66504254 is a wasteful number, since it uses less digits than its factorization.

66504254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 66504254 is about 8155.0140404539. The cubic root of 66504254 is about 405.1505897347.

The spelling of 66504254 in words is "sixty-six million, five hundred four thousand, two hundred fifty-four".