11206000640 has 72 divisors (see below), whose sum is σ = 26895871800. Its totient is φ = 4482138112.

The previous prime is 11206000627. The next prime is 11206000643. The reversal of 11206000640 is 4600060211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11206000643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646811 + ... + 663909.

It is an arithmetic number, because the mean of its divisors is an integer number (373553775).

Almost surely, 2^11206000640 is an apocalyptic number.

11206000640 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 11206000640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13447935900).

11206000640 is an abundant number, since it is smaller than the sum of its proper divisors (15689871160).

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

11206000640 is an frugal number, since it uses more digits than its factorization.

11206000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17138 (or 17106 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11206000640 its reverse (4600060211), we get a palindrome (15806060851).

The spelling of 11206000640 in words is "eleven billion, two hundred six million, six hundred forty", and thus it is an aban number.