66163531363 has 2 divisors, whose sum is σ = 66163531364. Its totient is φ = 66163531362.

The previous prime is 66163531321. The next prime is 66163531373. The reversal of 66163531363 is 36313536166.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66163531363 is a prime.

It is a super-2 number, since 2×66163531363² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (66163531373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33081765681 + 33081765682.

It is an arithmetic number, because the mean of its divisors is an integer number (33081765682).

Almost surely, 2^66163531363 is an apocalyptic number.

66163531363 is a deficient number, since it is larger than the sum of its proper divisors (1).

66163531363 is an equidigital number, since it uses as much as digits as its factorization.

66163531363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 43.

The spelling of 66163531363 in words is "sixty-six billion, one hundred sixty-three million, five hundred thirty-one thousand, three hundred sixty-three".