66268601 has 16 divisors (see below), whose sum is σ = 80724096. Its totient is φ = 53104896.

The previous prime is 66268583. The next prime is 66268619. The reversal of 66268601 is 10686266.

It is an interprime number because it is at equal distance from previous prime (66268583) and next prime (66268619).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66268601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66268661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16910 + ... + 20456.

It is an arithmetic number, because the mean of its divisors is an integer number (5045256).

Almost surely, 2^66268601 is an apocalyptic number.

It is an amenable number.

66268601 is a deficient number, since it is larger than the sum of its proper divisors (14455495).

66268601 is a wasteful number, since it uses less digits than its factorization.

66268601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 66268601 is about 8140.5528682025. The cubic root of 66268601 is about 404.6714828194.

The spelling of 66268601 in words is "sixty-six million, two hundred sixty-eight thousand, six hundred one".