66213014 has 12 divisors (see below), whose sum is σ = 115535124. Its totient is φ = 28376964.

The previous prime is 66212957. The next prime is 66213029. The reversal of 66213014 is 41031266.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337724 + ... + 337919.

It is an arithmetic number, because the mean of its divisors is an integer number (9627927).

Almost surely, 2^66213014 is an apocalyptic number.

66213014 is a deficient number, since it is larger than the sum of its proper divisors (49322110).

66213014 is a wasteful number, since it uses less digits than its factorization.

66213014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675659 (or 675652 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 66213014 is about 8137.1379489351. The cubic root of 66213014 is about 404.5583031945.

The spelling of 66213014 in words is "sixty-six million, two hundred thirteen thousand, fourteen".