66056526218 has 8 divisors (see below), whose sum is σ = 99085917060. Its totient is φ = 33027887200.

The previous prime is 66056526209. The next prime is 66056526269. The reversal of 66056526218 is 81262565066.

It can be written as a sum of positive squares in 2 ways, for example, as 58359446929 + 7697079289 = 241577^2 + 87733^2 .

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

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 162068 + ... + 397968.

Almost surely, 2^66056526218 is an apocalyptic number.

66056526218 is a deficient number, since it is larger than the sum of its proper divisors (33029390842).

66056526218 is a wasteful number, since it uses less digits than its factorization.

66056526218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375912.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 66056526218 in words is "sixty-six billion, fifty-six million, five hundred twenty-six thousand, two hundred eighteen".