66020245323 has 16 divisors (see below), whose sum is σ = 90875406336. Its totient is φ = 42589566720.

The previous prime is 66020245309. The next prime is 66020245427. The reversal of 66020245323 is 32354202066.

It is not a de Polignac number, because 66020245323 - 2²⁴ = 66003468107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66020245303) 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, 1142011 + ... + 1198427.

It is an arithmetic number, because the mean of its divisors is an integer number (5679712896).

Almost surely, 2^66020245323 is an apocalyptic number.

66020245323 is a deficient number, since it is larger than the sum of its proper divisors (24855161013).

66020245323 is a wasteful number, since it uses less digits than its factorization.

66020245323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69034.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 66020245323 its reverse (32354202066), we get a palindrome (98374447389).

The spelling of 66020245323 in words is "sixty-six billion, twenty million, two hundred forty-five thousand, three hundred twenty-three".