66130002 has 24 divisors (see below), whose sum is σ = 143606736. Its totient is φ = 21993336.

The previous prime is 66129977. The next prime is 66130003. The reversal of 66130002 is 20003166.

It is a happy number.

66130002 is a `hidden beast` number, since 661 + 3 + 0 + 0 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (66130003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4473 + ... + 12339.

It is an arithmetic number, because the mean of its divisors is an integer number (5983614).

Almost surely, 2^66130002 is an apocalyptic number.

66130002 is an abundant number, since it is smaller than the sum of its proper divisors (77476734).

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

66130002 is a wasteful number, since it uses less digits than its factorization.

66130002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342 (or 8339 counting only the distinct ones).

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

The square root of 66130002 is about 8132.0355385352. The cubic root of 66130002 is about 404.3891660609.

Adding to 66130002 its reverse (20003166), we get a palindrome (86133168).

The spelling of 66130002 in words is "sixty-six million, one hundred thirty thousand, two".