66245067 has 16 divisors (see below), whose sum is σ = 112161280. Its totient is φ = 37854216.

The previous prime is 66245063. The next prime is 66245087. The reversal of 66245067 is 76054266.

It is not a de Polignac number, because 66245067 - 2² = 66245063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66245063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175063 + ... + 175440.

It is an arithmetic number, because the mean of its divisors is an integer number (7010080).

Almost surely, 2^66245067 is an apocalyptic number.

66245067 is a deficient number, since it is larger than the sum of its proper divisors (45916213).

66245067 is a wasteful number, since it uses less digits than its factorization.

66245067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350519 (or 350513 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 66245067 is about 8139.1072606275. The cubic root of 66245067 is about 404.6235734218.

The spelling of 66245067 in words is "sixty-six million, two hundred forty-five thousand, sixty-seven".