66432620141 has 16 divisors (see below), whose sum is σ = 68449086720. Its totient is φ = 64442864640.

The previous prime is 66432620123. The next prime is 66432620171. The reversal of 66432620141 is 14102623466.

It is a cyclic number.

It is not a de Polignac number, because 66432620141 - 2¹⁰ = 66432619117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66432620171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4022621 + ... + 4039101.

It is an arithmetic number, because the mean of its divisors is an integer number (4278067920).

Almost surely, 2^66432620141 is an apocalyptic number.

It is an amenable number.

66432620141 is a deficient number, since it is larger than the sum of its proper divisors (2016466579).

66432620141 is a wasteful number, since it uses less digits than its factorization.

66432620141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17284.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 66432620141 in words is "sixty-six billion, four hundred thirty-two million, six hundred twenty thousand, one hundred forty-one".