66321276248073 has 16 divisors (see below), whose sum is σ = 110248355321856. Its totient is φ = 34452611037840.

The previous prime is 66321276248023. The next prime is 66321276248083. The reversal of 66321276248073 is 37084267212366.

It is not a de Polignac number, because 66321276248073 - 2⁹ = 66321276247561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66321276248023) 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, 143552545761 + ... + 143552546222.

It is an arithmetic number, because the mean of its divisors is an integer number (6890522207616).

Almost surely, 2^{66321276248073} is an apocalyptic number.

It is an amenable number.

66321276248073 is a deficient number, since it is larger than the sum of its proper divisors (43927079073783).

66321276248073 is a wasteful number, since it uses less digits than its factorization.

66321276248073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287105092004.

The product of its (nonzero) digits is 24385536, while the sum is 57.

The spelling of 66321276248073 in words is "sixty-six trillion, three hundred twenty-one billion, two hundred seventy-six million, two hundred forty-eight thousand, seventy-three".