11199130165 has 4 divisors (see below), whose sum is σ = 13438956204. Its totient is φ = 8959304128.

The previous prime is 11199130127. The next prime is 11199130223. The reversal of 11199130165 is 56103199111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2689252164 + 8509878001 = 51858^2 + 92249^2 .

It is a cyclic number.

It is not a de Polignac number, because 11199130165 - 2⁷ = 11199130037 is a prime.

It is a super-2 number, since 2×11199130165² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119913012 + ... + 1119913021.

It is an arithmetic number, because the mean of its divisors is an integer number (3359739051).

Almost surely, 2^11199130165 is an apocalyptic number.

It is an amenable number.

11199130165 is a deficient number, since it is larger than the sum of its proper divisors (2239826039).

11199130165 is an equidigital number, since it uses as much as digits as its factorization.

11199130165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239826038.

The product of its (nonzero) digits is 7290, while the sum is 37.

The spelling of 11199130165 in words is "eleven billion, one hundred ninety-nine million, one hundred thirty thousand, one hundred sixty-five".