66096956513 has 16 divisors (see below), whose sum is σ = 79310532480. Its totient is φ = 53884486656.

The previous prime is 66096956509. The next prime is 66096956543. The reversal of 66096956513 is 31565969066.

It is not a de Polignac number, because 66096956513 - 2² = 66096956509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66096956543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2416256 + ... + 2443457.

It is an arithmetic number, because the mean of its divisors is an integer number (4956908280).

Almost surely, 2^66096956513 is an apocalyptic number.

It is an amenable number.

66096956513 is a deficient number, since it is larger than the sum of its proper divisors (13213575967).

66096956513 is a wasteful number, since it uses less digits than its factorization.

66096956513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859816.

The product of its (nonzero) digits is 7873200, while the sum is 56.

The spelling of 66096956513 in words is "sixty-six billion, ninety-six million, nine hundred fifty-six thousand, five hundred thirteen".