66608470 has 16 divisors (see below), whose sum is σ = 120210480. Its totient is φ = 26573344.

The previous prime is 66608459. The next prime is 66608497. The reversal of 66608470 is 7480666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4672 + ... + 12451.

It is an arithmetic number, because the mean of its divisors is an integer number (7513155).

Almost surely, 2^66608470 is an apocalyptic number.

66608470 is a deficient number, since it is larger than the sum of its proper divisors (53602010).

66608470 is a wasteful number, since it uses less digits than its factorization.

66608470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17519.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 66608470 is about 8161.4012277304. The cubic root of 66608470 is about 405.3621107283.

The spelling of 66608470 in words is "sixty-six million, six hundred eight thousand, four hundred seventy".