66004849 has 8 divisors (see below), whose sum is σ = 67149728. Its totient is φ = 64864800.

The previous prime is 66004843. The next prime is 66004853. The reversal of 66004849 is 94840066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66004849 - 2⁷ = 66004721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66004843) 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, 35749 + ... + 37549.

It is an arithmetic number, because the mean of its divisors is an integer number (8393716).

Almost surely, 2^66004849 is an apocalyptic number.

It is an amenable number.

66004849 is a deficient number, since it is larger than the sum of its proper divisors (1144879).

66004849 is a wasteful number, since it uses less digits than its factorization.

66004849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 66004849 is about 8124.3368344746. The cubic root of 66004849 is about 404.1338987758.

It can be divided in two parts, 6600 and 4849, that added together give a square (11449 = 107²).

The spelling of 66004849 in words is "sixty-six million, four thousand, eight hundred forty-nine".