66523289319 has 12 divisors (see below), whose sum is σ = 96294960216. Its totient is φ = 44253891312.

The previous prime is 66523289317. The next prime is 66523289351. The reversal of 66523289319 is 91398232566.

66523289319 is a `hidden beast` number, since 6 + 6 + 523 + 2 + 89 + 31 + 9 = 666.

It is not a de Polignac number, because 66523289319 - 2¹ = 66523289317 is a prime.

It is a super-2 number, since 2×66523289319² (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 (66523289311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7909584 + ... + 7917989.

It is an arithmetic number, because the mean of its divisors is an integer number (8024580018).

Almost surely, 2^66523289319 is an apocalyptic number.

66523289319 is a deficient number, since it is larger than the sum of its proper divisors (29771670897).

66523289319 is a wasteful number, since it uses less digits than its factorization.

66523289319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828046 (or 15828043 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 66523289319 in words is "sixty-six billion, five hundred twenty-three million, two hundred eighty-nine thousand, three hundred nineteen".