66010305 has 8 divisors (see below), whose sum is σ = 105616512. Its totient is φ = 35205488.

The previous prime is 66010297. The next prime is 66010339. The reversal of 66010305 is 50301066.

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

It is a cyclic number.

It is not a de Polignac number, because 66010305 - 2³ = 66010297 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200329 + ... + 2200358.

It is an arithmetic number, because the mean of its divisors is an integer number (13202064).

Almost surely, 2^66010305 is an apocalyptic number.

It is an amenable number.

66010305 is a deficient number, since it is larger than the sum of its proper divisors (39606207).

66010305 is a wasteful number, since it uses less digits than its factorization.

66010305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400695.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 66010305 is about 8124.6726087886. The cubic root of 66010305 is about 404.1450337850.

The spelling of 66010305 in words is "sixty-six million, ten thousand, three hundred five".