66608883 has 12 divisors (see below), whose sum is σ = 104959608. Its totient is φ = 40368960.

The previous prime is 66608881. The next prime is 66608903. The reversal of 66608883 is 38880666.

It is not a de Polignac number, because 66608883 - 2¹ = 66608881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66608881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336310 + ... + 336507.

It is an arithmetic number, because the mean of its divisors is an integer number (8746634).

Almost surely, 2^66608883 is an apocalyptic number.

66608883 is a deficient number, since it is larger than the sum of its proper divisors (38350725).

66608883 is a wasteful number, since it uses less digits than its factorization.

66608883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672834 (or 672831 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 66608883 is about 8161.4265297189. The cubic root of 66608883 is about 405.3629485307.

The spelling of 66608883 in words is "sixty-six million, six hundred eight thousand, eight hundred eighty-three".