11662021360 has 80 divisors (see below), whose sum is σ = 29636853120. Its totient is φ = 4232459520.

The previous prime is 11662021351. The next prime is 11662021417. The reversal of 11662021360 is 6312026611.

11662021360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 447571 + ... + 472909.

It is an arithmetic number, because the mean of its divisors is an integer number (370460664).

Almost surely, 2^11662021360 is an apocalyptic number.

11662021360 is a gapful number since it is divisible by the number (10) 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 11662021360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14818426560).

11662021360 is an abundant number, since it is smaller than the sum of its proper divisors (17974831760).

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

11662021360 is a wasteful number, since it uses less digits than its factorization.

11662021360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25886 (or 25880 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 11662021360 its reverse (6312026611), we get a palindrome (17974047971).

The spelling of 11662021360 in words is "eleven billion, six hundred sixty-two million, twenty-one thousand, three hundred sixty".