66130043254043 has 4 divisors (see below), whose sum is σ = 66133177251888. Its totient is φ = 66126909256200.

The previous prime is 66130043254013. The next prime is 66130043254109. The reversal of 66130043254043 is 34045234003166.

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

It is a cyclic number.

It is not a de Polignac number, because 66130043254043 - 2¹⁶ = 66130043188507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66130043254013) 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, 1566967271 + ... + 1567009472.

It is an arithmetic number, because the mean of its divisors is an integer number (16533294312972).

Almost surely, 2^{66130043254043} is an apocalyptic number.

66130043254043 is a deficient number, since it is larger than the sum of its proper divisors (3133997845).

66130043254043 is a wasteful number, since it uses less digits than its factorization.

66130043254043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133997844.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 66130043254043 in words is "sixty-six trillion, one hundred thirty billion, forty-three million, two hundred fifty-four thousand, forty-three".