11615145088 has 16 divisors (see below), whose sum is σ = 23139547110. Its totient is φ = 5807572480.

The previous prime is 11615145083. The next prime is 11615145119. The reversal of 11615145088 is 88054151611.

It can be written as a sum of positive squares in only one way, i.e., 7801835584 + 3813309504 = 88328^2 + 61752^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 11615145088.

It is not an unprimeable number, because it can be changed into a prime (11615145083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45371533 + ... + 45371788.

Almost surely, 2^11615145088 is an apocalyptic number.

It is an amenable number.

11615145088 is a deficient number, since it is larger than the sum of its proper divisors (11524402022).

11615145088 is an frugal number, since it uses more digits than its factorization.

11615145088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90743335 (or 90743323 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 40.

Adding to 11615145088 its reverse (88054151611), we get a palindrome (99669296699).

The spelling of 11615145088 in words is "eleven billion, six hundred fifteen million, one hundred forty-five thousand, eighty-eight".