66272141 has 8 divisors (see below), whose sum is σ = 73672704. Its totient is φ = 59200560.

The previous prime is 66272123. The next prime is 66272149. The reversal of 66272141 is 14127266.

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 66272141 - 2⁶ = 66272077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66272149) 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 7 ways as a sum of consecutive naturals, for example, 81821 + ... + 82626.

It is an arithmetic number, because the mean of its divisors is an integer number (9209088).

Almost surely, 2^66272141 is an apocalyptic number.

It is an amenable number.

66272141 is a deficient number, since it is larger than the sum of its proper divisors (7400563).

66272141 is a wasteful number, since it uses less digits than its factorization.

66272141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164491.

The product of its digits is 4032, while the sum is 29.

The square root of 66272141 is about 8140.7702952485. The cubic root of 66272141 is about 404.6786884015.

The spelling of 66272141 in words is "sixty-six million, two hundred seventy-two thousand, one hundred forty-one".