66183223843 has 16 divisors (see below), whose sum is σ = 72546993792. Its totient is φ = 59877576000.

The previous prime is 66183223817. The next prime is 66183223871. The reversal of 66183223843 is 34832238166.

It is a de Polignac number, because none of the positive numbers 2^k-66183223843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66183223793 and 66183223802.

It is not an unprimeable number, because it can be changed into a prime (66183223643) 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, 6071428 + ... + 6082318.

It is an arithmetic number, because the mean of its divisors is an integer number (4534187112).

Almost surely, 2^66183223843 is an apocalyptic number.

66183223843 is a deficient number, since it is larger than the sum of its proper divisors (6363769949).

66183223843 is a wasteful number, since it uses less digits than its factorization.

66183223843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13506.

The product of its digits is 995328, while the sum is 46.

The spelling of 66183223843 in words is "sixty-six billion, one hundred eighty-three million, two hundred twenty-three thousand, eight hundred forty-three".