66441710 has 16 divisors (see below), whose sum is σ = 124795296. Its totient is φ = 25421088.

The previous prime is 66441707. The next prime is 66441719. The reversal of 66441710 is 1714466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66441719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144209 + ... + 144668.

It is an arithmetic number, because the mean of its divisors is an integer number (7799706).

Almost surely, 2^66441710 is an apocalyptic number.

66441710 is a deficient number, since it is larger than the sum of its proper divisors (58353586).

66441710 is a wasteful number, since it uses less digits than its factorization.

66441710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288907.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 66441710 is about 8151.1784424094. The cubic root of 66441710 is about 405.0235417906.

The spelling of 66441710 in words is "sixty-six million, four hundred forty-one thousand, seven hundred ten".