66707044430 has 64 divisors (see below), whose sum is σ = 137565304128. Its totient is φ = 23071426560.

The previous prime is 66707044429. The next prime is 66707044457. The reversal of 66707044430 is 3444070766.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394784 + ... + 537836.

It is an arithmetic number, because the mean of its divisors is an integer number (2149457877).

Almost surely, 2^66707044430 is an apocalyptic number.

66707044430 is an abundant number, since it is smaller than the sum of its proper divisors (70858259698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66707044430 is a wasteful number, since it uses less digits than its factorization.

66707044430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143301.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 66707044430 in words is "sixty-six billion, seven hundred seven million, forty-four thousand, four hundred thirty".