66066000043 has 4 divisors (see below), whose sum is σ = 69543157960. Its totient is φ = 62588842128.

The previous prime is 66066000037. The next prime is 66066000047. The reversal of 66066000043 is 34000066066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66066000043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66065999969 and 66066000014.

It is not an unprimeable number, because it can be changed into a prime (66066000047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1738578930 + ... + 1738578967.

It is an arithmetic number, because the mean of its divisors is an integer number (17385789490).

Almost surely, 2^66066000043 is an apocalyptic number.

66066000043 is a deficient number, since it is larger than the sum of its proper divisors (3477157917).

66066000043 is a wasteful number, since it uses less digits than its factorization.

66066000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477157916.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 66066000043 in words is "sixty-six billion, sixty-six million, forty-three", and thus it is an aban number and an uban number.