66608396 has 6 divisors (see below), whose sum is σ = 116564700. Its totient is φ = 33304196.

The previous prime is 66608393. The next prime is 66608407. The reversal of 66608396 is 69380666.

It is not an unprimeable number, because it can be changed into a prime (66608393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8326046 + ... + 8326053.

It is an arithmetic number, because the mean of its divisors is an integer number (19427450).

Almost surely, 2^66608396 is an apocalyptic number.

It is an amenable number.

66608396 is a deficient number, since it is larger than the sum of its proper divisors (49956304).

66608396 is a wasteful number, since it uses less digits than its factorization.

66608396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16652103 (or 16652101 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 66608396 is about 8161.3966941940. The cubic root of 66608396 is about 405.3619606132.

The spelling of 66608396 in words is "sixty-six million, six hundred eight thousand, three hundred ninety-six".