66718002 has 16 divisors (see below), whose sum is σ = 143700480. Its totient is φ = 20528592.

The previous prime is 66717953. The next prime is 66718021. The reversal of 66718002 is 20081766.

It is a happy number.

66718002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427602 + ... + 427757.

It is an arithmetic number, because the mean of its divisors is an integer number (8981280).

Almost surely, 2^66718002 is an apocalyptic number.

66718002 is an abundant number, since it is smaller than the sum of its proper divisors (76982478).

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

66718002 is a wasteful number, since it uses less digits than its factorization.

66718002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855377.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 66718002 is about 8168.1088386480. The cubic root of 66718002 is about 405.5841836244.

Adding to 66718002 its reverse (20081766), we get a palindrome (86799768).

The spelling of 66718002 in words is "sixty-six million, seven hundred eighteen thousand, two".