66819662182 has 16 divisors (see below), whose sum is σ = 123359376672. Its totient is φ = 26434152000.

The previous prime is 66819662159. The next prime is 66819662233. The reversal of 66819662182 is 28126691866.

66819662182 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66819662182² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183570319 + ... + 183570682.

It is an arithmetic number, because the mean of its divisors is an integer number (7709961042).

Almost surely, 2^66819662182 is an apocalyptic number.

66819662182 is a deficient number, since it is larger than the sum of its proper divisors (56539714490).

66819662182 is a wasteful number, since it uses less digits than its factorization.

66819662182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367141023.

The product of its digits is 2985984, while the sum is 55.

The spelling of 66819662182 in words is "sixty-six billion, eight hundred nineteen million, six hundred sixty-two thousand, one hundred eighty-two".