66145836183 has 16 divisors (see below), whose sum is σ = 105175988736. Its totient is φ = 36154245600.

The previous prime is 66145836179. The next prime is 66145836191. The reversal of 66145836183 is 38163854166.

It is not a de Polignac number, because 66145836183 - 2² = 66145836179 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66145836103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68473468 + ... + 68474433.

It is an arithmetic number, because the mean of its divisors is an integer number (6573499296).

Almost surely, 2^66145836183 is an apocalyptic number.

66145836183 is a deficient number, since it is larger than the sum of its proper divisors (39030152553).

66145836183 is a wasteful number, since it uses less digits than its factorization.

66145836183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136947934.

The product of its digits is 2488320, while the sum is 51.

The spelling of 66145836183 in words is "sixty-six billion, one hundred forty-five million, eight hundred thirty-six thousand, one hundred eighty-three".