66710030 has 8 divisors (see below), whose sum is σ = 120078072. Its totient is φ = 26684008.

The previous prime is 66710029. The next prime is 66710053. The reversal of 66710030 is 3001766.

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

It is a junction number, because it is equal to n+sod(n) for n = 66709978 and 66710005.

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, 3335492 + ... + 3335511.

It is an arithmetic number, because the mean of its divisors is an integer number (15009759).

Almost surely, 2^66710030 is an apocalyptic number.

66710030 is a deficient number, since it is larger than the sum of its proper divisors (53368042).

66710030 is a wasteful number, since it uses less digits than its factorization.

66710030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6671010.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 66710030 is about 8167.6208286134. The cubic root of 66710030 is about 405.5680288346.

Adding to 66710030 its reverse (3001766), we get a palindrome (69711796).

The spelling of 66710030 in words is "sixty-six million, seven hundred ten thousand, thirty".