11165948965 has 16 divisors (see below), whose sum is σ = 13587865200. Its totient is φ = 8807035392.

The previous prime is 11165948957. The next prime is 11165948987. The reversal of 11165948965 is 56984956111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 565393284 + 10600555681 = 23778^2 + 102959^2 .

It is a cyclic number.

It is not a de Polignac number, because 11165948965 - 2³ = 11165948957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452151 + ... + 1459819.

It is an arithmetic number, because the mean of its divisors is an integer number (849241575).

Almost surely, 2^11165948965 is an apocalyptic number.

It is an amenable number.

11165948965 is a deficient number, since it is larger than the sum of its proper divisors (2421916235).

11165948965 is an equidigital number, since it uses as much as digits as its factorization.

11165948965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11736.

The product of its digits is 2332800, while the sum is 55.

The spelling of 11165948965 in words is "eleven billion, one hundred sixty-five million, nine hundred forty-eight thousand, nine hundred sixty-five".