66134430 has 96 divisors (see below), whose sum is σ = 183845376. Its totient is φ = 16454592.

The previous prime is 66134417. The next prime is 66134449. The reversal of 66134430 is 3443166.

66134430 is a `hidden beast` number, since 6 + 613 + 4 + 43 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 66134394 and 66134403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88639 + ... + 89381.

It is an arithmetic number, because the mean of its divisors is an integer number (1915056).

Almost surely, 2^66134430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66134430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91922688).

66134430 is an abundant number, since it is smaller than the sum of its proper divisors (117710946).

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

66134430 is a wasteful number, since it uses less digits than its factorization.

66134430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 66134430 is about 8132.3077905352. The cubic root of 66134430 is about 404.3981916933.

Adding to 66134430 its reverse (3443166), we get a palindrome (69577596).

It can be divided in two parts, 66134 and 430, that added together give a square (66564 = 258²).

The spelling of 66134430 in words is "sixty-six million, one hundred thirty-four thousand, four hundred thirty".