66964115119 has 24 divisors (see below), whose sum is σ = 75401951744. Its totient is φ = 59406177600.

The previous prime is 66964115117. The next prime is 66964115123. The reversal of 66964115119 is 91151146966.

It is not a de Polignac number, because 66964115119 - 2¹ = 66964115117 is a prime.

It is a super-2 number, since 2×66964115119² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66964115117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 901669 + ... + 973105.

Almost surely, 2^66964115119 is an apocalyptic number.

66964115119 is a deficient number, since it is larger than the sum of its proper divisors (8437836625).

66964115119 is a wasteful number, since it uses less digits than its factorization.

66964115119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71647 (or 71636 counting only the distinct ones).

The product of its digits is 349920, while the sum is 49.

The spelling of 66964115119 in words is "sixty-six billion, nine hundred sixty-four million, one hundred fifteen thousand, one hundred nineteen".