11606647363609 has 3 divisors (see below), whose sum is σ = 11606650770463. Its totient is φ = 11606643956756.

The previous prime is 11606647363607. The next prime is 11606647363637. The reversal of 11606647363609 is 90636374660611.

The square root of 11606647363609 is 3406853.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1736820873225 + 9869826490384 = 1317885^2 + 3141628^2 .

It is not a de Polignac number, because 11606647363609 - 2¹ = 11606647363607 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11606647363607) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1703427 + ... + 5110279.

Almost surely, 2^{11606647363609} is an apocalyptic number.

11606647363609 is the 3406853-rd square number.

11606647363609 is the 1703427-th centered octagonal number.

It is an amenable number.

11606647363609 is a deficient number, since it is larger than the sum of its proper divisors (3406854).

11606647363609 is an frugal number, since it uses more digits than its factorization.

11606647363609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6813706 (or 3406853 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 58.

The spelling of 11606647363609 in words is "eleven trillion, six hundred six billion, six hundred forty-seven million, three hundred sixty-three thousand, six hundred nine".