66577584134 has 8 divisors (see below), whose sum is σ = 99952249320. Its totient is φ = 33260167696.

The previous prime is 66577584131. The next prime is 66577584181. The reversal of 66577584134 is 43148577566.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66577584134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66577584131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14309279 + ... + 14313930.

It is an arithmetic number, because the mean of its divisors is an integer number (12494031165).

Almost surely, 2^66577584134 is an apocalyptic number.

66577584134 is a deficient number, since it is larger than the sum of its proper divisors (33374665186).

66577584134 is a wasteful number, since it uses less digits than its factorization.

66577584134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28624374.

The product of its digits is 16934400, while the sum is 56.

The spelling of 66577584134 in words is "sixty-six billion, five hundred seventy-seven million, five hundred eighty-four thousand, one hundred thirty-four".