66704260 has 48 divisors (see below), whose sum is σ = 169513344. Its totient is φ = 21523968.

The previous prime is 66704257. The next prime is 66704299. The reversal of 66704260 is 6240766.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11634 + ... + 16393.

It is an arithmetic number, because the mean of its divisors is an integer number (3531528).

Almost surely, 2^66704260 is an apocalyptic number.

It is an amenable number.

66704260 is an abundant number, since it is smaller than the sum of its proper divisors (102809084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66704260 is a wasteful number, since it uses less digits than its factorization.

66704260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28060 (or 28058 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 66704260 is about 8167.2675969384. The cubic root of 66704260 is about 405.5563354655.

The spelling of 66704260 in words is "sixty-six million, seven hundred four thousand, two hundred sixty".