66040760013 has 8 divisors (see below), whose sum is σ = 93234014208. Its totient is φ = 41437339584.

The previous prime is 66040759997. The next prime is 66040760033. The reversal of 66040760013 is 31006704066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66040760013 - 2⁴ = 66040759997 is a prime.

It is a super-2 number, since 2×66040760013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66040760033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647458381 + ... + 647458482.

It is an arithmetic number, because the mean of its divisors is an integer number (11654251776).

Almost surely, 2^66040760013 is an apocalyptic number.

It is an amenable number.

66040760013 is a deficient number, since it is larger than the sum of its proper divisors (27193254195).

66040760013 is a wasteful number, since it uses less digits than its factorization.

66040760013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294916883.

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 66040760013 in words is "sixty-six billion, forty million, seven hundred sixty thousand, thirteen".