11665026012 has 96 divisors (see below), whose sum is σ = 28805414400. Its totient is φ = 3666691072.

The previous prime is 11665025969. The next prime is 11665026049. The reversal of 11665026012 is 21062056611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14418664 + ... + 14419472.

It is an arithmetic number, because the mean of its divisors is an integer number (300056400).

Almost surely, 2^11665026012 is an apocalyptic number.

11665026012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11665026012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14402707200).

11665026012 is an abundant number, since it is smaller than the sum of its proper divisors (17140388388).

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

11665026012 is a wasteful number, since it uses less digits than its factorization.

11665026012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 11665026012 in words is "eleven billion, six hundred sixty-five million, twenty-six thousand, twelve".