66231542455106 has 16 divisors (see below), whose sum is σ = 113616039477120. Its totient is φ = 28365883663680.

The previous prime is 66231542455079. The next prime is 66231542455109. The reversal of 66231542455106 is 60155424513266.

It is not an unprimeable number, because it can be changed into a prime (66231542455109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1588570310 + ... + 1588612001.

It is an arithmetic number, because the mean of its divisors is an integer number (7101002467320).

Almost surely, 2^{66231542455106} is an apocalyptic number.

66231542455106 is a deficient number, since it is larger than the sum of its proper divisors (47384497022014).

66231542455106 is a wasteful number, since it uses less digits than its factorization.

66231542455106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177183809.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 66231542455106 in words is "sixty-six trillion, two hundred thirty-one billion, five hundred forty-two million, four hundred fifty-five thousand, one hundred six".