19606688067136 has 63 divisors (see below), whose sum is σ = 39093837737619. Its totient is φ = 9756496386048.

The previous prime is 19606688067107. The next prime is 19606688067149. The reversal of 19606688067136 is 63176088660691.

The square root of 19606688067136 is 4427944.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 16228973390400 + 3377714676736 = 4028520^2 + 1837856^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8111992200 + ... + 8111994616.

Almost surely, 2^{19606688067136} is an apocalyptic number.

19606688067136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

19606688067136 is the 4427944-th square number.

It is an amenable number.

19606688067136 is a deficient number, since it is larger than the sum of its proper divisors (19487149670483).

19606688067136 is an frugal number, since it uses more digits than its factorization.

19606688067136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304 (or 2648 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 19606688067136 in words is "nineteen trillion, six hundred six billion, six hundred eighty-eight million, sixty-seven thousand, one hundred thirty-six".