66541464323 has 2 divisors, whose sum is σ = 66541464324. Its totient is φ = 66541464322.

The previous prime is 66541464293. The next prime is 66541464329. The reversal of 66541464323 is 32346414566.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66541464323 is a prime.

It is not a weakly prime, because it can be changed into another prime (66541464329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33270732161 + 33270732162.

It is an arithmetic number, because the mean of its divisors is an integer number (33270732162).

Almost surely, 2^66541464323 is an apocalyptic number.

66541464323 is a deficient number, since it is larger than the sum of its proper divisors (1).

66541464323 is an equidigital number, since it uses as much as digits as its factorization.

66541464323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 44.

Adding to 66541464323 its reverse (32346414566), we get a palindrome (98887878889).

The spelling of 66541464323 in words is "sixty-six billion, five hundred forty-one million, four hundred sixty-four thousand, three hundred twenty-three".