66343608 has 48 divisors (see below), whose sum is σ = 180814920. Its totient is φ = 21974976.

The previous prime is 66343603. The next prime is 66343631. The reversal of 66343608 is 80634366.

66343608 is a `hidden beast` number, since 6 + 6 + 3 + 43 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66343603) 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, 8910 + ... + 14562.

Almost surely, 2^66343608 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 66343608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90407460).

66343608 is an abundant number, since it is smaller than the sum of its proper divisors (114471312).

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

66343608 is a wasteful number, since it uses less digits than its factorization.

66343608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828 (or 5821 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 66343608 is about 8145.1585619925. The cubic root of 66343608 is about 404.8241028574.

The spelling of 66343608 in words is "sixty-six million, three hundred forty-three thousand, six hundred eight".