66016063469 has 2 divisors, whose sum is σ = 66016063470. Its totient is φ = 66016063468.

The previous prime is 66016063343. The next prime is 66016063499. The reversal of 66016063469 is 96436061066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50428540969 + 15587522500 = 224563^2 + 124850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66016063469 is a prime.

It is a super-2 number, since 2×66016063469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66016063499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33008031734 + 33008031735.

It is an arithmetic number, because the mean of its divisors is an integer number (33008031735).

Almost surely, 2^66016063469 is an apocalyptic number.

It is an amenable number.

66016063469 is a deficient number, since it is larger than the sum of its proper divisors (1).

66016063469 is an equidigital number, since it uses as much as digits as its factorization.

66016063469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 47.

The spelling of 66016063469 in words is "sixty-six billion, sixteen million, sixty-three thousand, four hundred sixty-nine".