66001230 has 96 divisors (see below), whose sum is σ = 180127584. Its totient is φ = 17387136.

The previous prime is 66001217. The next prime is 66001249. The reversal of 66001230 is 3210066.

It is a happy number.

66001230 is a `hidden beast` number, since 660 + 0 + 1 + 2 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

66001230 is a modest number, since divided by 1230 gives 660 as remainder.

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, 381424 + ... + 381596.

It is an arithmetic number, because the mean of its divisors is an integer number (1876329).

Almost surely, 2^66001230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66001230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90063792).

66001230 is an abundant number, since it is smaller than the sum of its proper divisors (114126354).

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

66001230 is a wasteful number, since it uses less digits than its factorization.

66001230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 66001230 is about 8124.1141055502. The cubic root of 66001230 is about 404.1265125139.

Adding to 66001230 its reverse (3210066), we get a palindrome (69211296).

The spelling of 66001230 in words is "sixty-six million, one thousand, two hundred thirty".