9538072434666 has 24 divisors (see below), whose sum is σ = 20665880454180. Its totient is φ = 3179348732736.

The previous prime is 9538072434643. The next prime is 9538072434677. The reversal of 9538072434666 is 6664342708359.

It can be written as a sum of positive squares in 2 ways, for example, as 8754077295441 + 783995139225 = 2958729^2 + 885435^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12101496 + ... + 12865548.

Almost surely, 2^{9538072434666} is an apocalyptic number.

9538072434666 is an abundant number, since it is smaller than the sum of its proper divisors (11127808019514).

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

9538072434666 is a wasteful number, since it uses less digits than its factorization.

9538072434666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457590 (or 1457587 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 63.

The spelling of 9538072434666 in words is "nine trillion, five hundred thirty-eight billion, seventy-two million, four hundred thirty-four thousand, six hundred sixty-six".