66272063 has 12 divisors (see below), whose sum is σ = 78449784. Its totient is φ = 55611600.

The previous prime is 66272053. The next prime is 66272077. The reversal of 66272063 is 36027266.

It is not a de Polignac number, because 66272063 - 2¹⁰ = 66271039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66272023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19493 + ... + 22638.

It is an arithmetic number, because the mean of its divisors is an integer number (6537482).

Almost surely, 2^66272063 is an apocalyptic number.

66272063 is a deficient number, since it is larger than the sum of its proper divisors (12177721).

66272063 is a wasteful number, since it uses less digits than its factorization.

66272063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42166 (or 42155 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 66272063 is about 8140.7655045456. The cubic root of 66272063 is about 404.6785296372.

The spelling of 66272063 in words is "sixty-six million, two hundred seventy-two thousand, sixty-three".