11158532163217 has 4 divisors (see below), whose sum is σ = 11158744439920. Its totient is φ = 11158319886516.

The previous prime is 11158532163203. The next prime is 11158532163239. The reversal of 11158532163217 is 71236123585111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11158532163217 - 2²³ = 11158523774609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11158532163257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106059483 + ... + 106164640.

It is an arithmetic number, because the mean of its divisors is an integer number (2789686109980).

Almost surely, 2^{11158532163217} is an apocalyptic number.

It is an amenable number.

11158532163217 is a deficient number, since it is larger than the sum of its proper divisors (212276703).

11158532163217 is an equidigital number, since it uses as much as digits as its factorization.

11158532163217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212276702.

The product of its digits is 302400, while the sum is 46.

The spelling of 11158532163217 in words is "eleven trillion, one hundred fifty-eight billion, five hundred thirty-two million, one hundred sixty-three thousand, two hundred seventeen".