66035026133421 has 16 divisors (see below), whose sum is σ = 89066011320384. Its totient is φ = 43514834747904.

The previous prime is 66035026133383. The next prime is 66035026133423. The reversal of 66035026133421 is 12433162053066.

66035026133421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66035026133421 - 2⁶ = 66035026133357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66035026133423) 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, 142129735 + ... + 142593588.

It is an arithmetic number, because the mean of its divisors is an integer number (5566625707524).

Almost surely, 2^{66035026133421} is an apocalyptic number.

It is an amenable number.

66035026133421 is a deficient number, since it is larger than the sum of its proper divisors (23030985186963).

66035026133421 is a wasteful number, since it uses less digits than its factorization.

66035026133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284724220.

The product of its (nonzero) digits is 466560, while the sum is 42.

Adding to 66035026133421 its reverse (12433162053066), we get a palindrome (78468188186487).

The spelling of 66035026133421 in words is "sixty-six trillion, thirty-five billion, twenty-six million, one hundred thirty-three thousand, four hundred twenty-one".