66963465529 has 9 divisors (see below), whose sum is σ = 70007727909. Its totient is φ = 64046317500.

The previous prime is 66963465523. The next prime is 66963465581. The reversal of 66963465529 is 92556436966.

The square root of 66963465529 is 258773.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 66963465529 - 2¹¹ = 66963463481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66963465523) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5946154 + ... + 5957404.

Almost surely, 2^66963465529 is an apocalyptic number.

66963465529 is the 258773-rd square number.

66963465529 is the 129387-th centered octagonal number.

It is an amenable number.

66963465529 is a deficient number, since it is larger than the sum of its proper divisors (3044262380).

66963465529 is an frugal number, since it uses more digits than its factorization.

66963465529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22548 (or 11274 counting only the distinct ones).

The product of its digits is 62985600, while the sum is 61.

The spelling of 66963465529 in words is "sixty-six billion, nine hundred sixty-three million, four hundred sixty-five thousand, five hundred twenty-nine".