66608960 has 112 divisors (see below), whose sum is σ = 175564800. Its totient is φ = 23869440.

The previous prime is 66608957. The next prime is 66608963. The reversal of 66608960 is 6980666.

It is an interprime number because it is at equal distance from previous prime (66608957) and next prime (66608963).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66608963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446966 + ... + 447114.

Almost surely, 2^66608960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66608960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87782400).

66608960 is an abundant number, since it is smaller than the sum of its proper divisors (108955840).

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

66608960 is a wasteful number, since it uses less digits than its factorization.

66608960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 66608960 is about 8161.4312470301. The cubic root of 66608960 is about 405.3631047308.

The spelling of 66608960 in words is "sixty-six million, six hundred eight thousand, nine hundred sixty".