66429044127 has 48 divisors (see below), whose sum is σ = 104493235392. Its totient is φ = 40496163840.

The previous prime is 66429044119. The next prime is 66429044131. The reversal of 66429044127 is 72144092466.

66429044127 is a `hidden beast` number, since 66 + 42 + 90 + 441 + 27 = 666.

It is not a de Polignac number, because 66429044127 - 2³ = 66429044119 is a prime.

It is a super-3 number, since 3×66429044127³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66429044197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4107477 + ... + 4123617.

It is an arithmetic number, because the mean of its divisors is an integer number (2176942404).

Almost surely, 2^66429044127 is an apocalyptic number.

66429044127 is a deficient number, since it is larger than the sum of its proper divisors (38064191265).

66429044127 is a wasteful number, since it uses less digits than its factorization.

66429044127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16928 (or 16925 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 66429044127 in words is "sixty-six billion, four hundred twenty-nine million, forty-four thousand, one hundred twenty-seven".