66006136465005 has 16 divisors (see below), whose sum is σ = 115210710921024. Its totient is φ = 32002975255680.

The previous prime is 66006136464979. The next prime is 66006136465007. The reversal of 66006136465005 is 50056463160066.

It is not a de Polignac number, because 66006136465005 - 2⁹ = 66006136464493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66006136465007) 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 15 ways as a sum of consecutive naturals, for example, 200018595184 + ... + 200018595513.

It is an arithmetic number, because the mean of its divisors is an integer number (7200669432564).

Almost surely, 2^{66006136465005} is an apocalyptic number.

It is an amenable number.

66006136465005 is a deficient number, since it is larger than the sum of its proper divisors (49204574456019).

66006136465005 is a wasteful number, since it uses less digits than its factorization.

66006136465005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400037190716.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 66006136465005 in words is "sixty-six trillion, six billion, one hundred thirty-six million, four hundred sixty-five thousand, five".