66789896430 has 32 divisors (see below), whose sum is σ = 160354260000. Its totient is φ = 17804138112.

The previous prime is 66789896423. The next prime is 66789896431. The reversal of 66789896430 is 3469898766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66789896431) 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, 322465 + ... + 487404.

It is an arithmetic number, because the mean of its divisors is an integer number (5011070625).

Almost surely, 2^66789896430 is an apocalyptic number.

66789896430 is an abundant number, since it is smaller than the sum of its proper divisors (93564363570).

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

66789896430 is a wasteful number, since it uses less digits than its factorization.

66789896430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812628.

The product of its (nonzero) digits is 94058496, while the sum is 66.

The spelling of 66789896430 in words is "sixty-six billion, seven hundred eighty-nine million, eight hundred ninety-six thousand, four hundred thirty".