66002402 has 8 divisors (see below), whose sum is σ = 99659712. Its totient is φ = 32782500.

The previous prime is 66002401. The next prime is 66002407. The reversal of 66002402 is 20420066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66002401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108974 + ... + 109577.

It is an arithmetic number, because the mean of its divisors is an integer number (12457464).

Almost surely, 2^66002402 is an apocalyptic number.

66002402 is a deficient number, since it is larger than the sum of its proper divisors (33657310).

66002402 is a wasteful number, since it uses less digits than its factorization.

66002402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218704.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 66002402 is about 8124.1862361716. The cubic root of 66002402 is about 404.1289045576.

Adding to 66002402 its reverse (20420066), we get a palindrome (86422468).

The spelling of 66002402 in words is "sixty-six million, two thousand, four hundred two".