11515650668 has 24 divisors (see below), whose sum is σ = 20587030464. Its totient is φ = 5633712000.

The previous prime is 11515650617. The next prime is 11515650683. The reversal of 11515650668 is 86605651511.

11515650668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11515650668² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907568 + ... + 920168.

It is an arithmetic number, because the mean of its divisors is an integer number (857792936).

Almost surely, 2^11515650668 is an apocalyptic number.

It is an amenable number.

11515650668 is a deficient number, since it is larger than the sum of its proper divisors (9071379796).

11515650668 is a wasteful number, since it uses less digits than its factorization.

11515650668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17513 (or 17511 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 44.

The spelling of 11515650668 in words is "eleven billion, five hundred fifteen million, six hundred fifty thousand, six hundred sixty-eight".