66130232 has 16 divisors (see below), whose sum is σ = 141707760. Its totient is φ = 28341504.

The previous prime is 66130213. The next prime is 66130243. The reversal of 66130232 is 23203166.

It is a junction number, because it is equal to n+sod(n) for n = 66130198 and 66130207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590393 + ... + 590504.

It is an arithmetic number, because the mean of its divisors is an integer number (8856735).

Almost surely, 2^66130232 is an apocalyptic number.

It is an amenable number.

66130232 is an abundant number, since it is smaller than the sum of its proper divisors (75577528).

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

66130232 is a wasteful number, since it uses less digits than its factorization.

66130232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180910 (or 1180906 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 66130232 is about 8132.0496801237. The cubic root of 66130232 is about 404.3896348819.

Adding to 66130232 its reverse (23203166), we get a palindrome (89333398).

The spelling of 66130232 in words is "sixty-six million, one hundred thirty thousand, two hundred thirty-two".