66043004 has 12 divisors (see below), whose sum is σ = 115633224. Its totient is φ = 33004944.

The previous prime is 66042953. The next prime is 66043009. The reversal of 66043004 is 40034066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66043009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10922 + ... + 15854.

It is an arithmetic number, because the mean of its divisors is an integer number (9636102).

Almost surely, 2^66043004 is an apocalyptic number.

It is an amenable number.

66043004 is a deficient number, since it is larger than the sum of its proper divisors (49590220).

66043004 is a wasteful number, since it uses less digits than its factorization.

66043004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8284 (or 8282 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 66043004 is about 8126.6846868819. The cubic root of 66043004 is about 404.2117554732.

The spelling of 66043004 in words is "sixty-six million, forty-three thousand, four".