11165390660 has 36 divisors (see below), whose sum is σ = 24746356908. Its totient is φ = 4231092672.

The previous prime is 11165390647. The next prime is 11165390669. The reversal of 11165390660 is 6609356111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3150127876 + 8015262784 = 56126^2 + 89528^2 .

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (11165390669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 766007 + ... + 780446.

It is an arithmetic number, because the mean of its divisors is an integer number (687398803).

Almost surely, 2^11165390660 is an apocalyptic number.

11165390660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11165390660 is an abundant number, since it is smaller than the sum of its proper divisors (13580966248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11165390660 is a wasteful number, since it uses less digits than its factorization.

11165390660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546500 (or 1546479 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 11165390660 in words is "eleven billion, one hundred sixty-five million, three hundred ninety thousand, six hundred sixty".