11006427640 has 128 divisors (see below), whose sum is σ = 28702537920. Its totient is φ = 3761971200.

The previous prime is 11006427611. The next prime is 11006427667. The reversal of 11006427640 is 4672460011.

It is a super-2 number, since 2×11006427640² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 529035 + ... + 549445.

Almost surely, 2^11006427640 is an apocalyptic number.

11006427640 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 11006427640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14351268960).

11006427640 is an abundant number, since it is smaller than the sum of its proper divisors (17696110280).

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

11006427640 is a wasteful number, since it uses less digits than its factorization.

11006427640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20513 (or 20509 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 11006427640 its reverse (4672460011), we get a palindrome (15678887651).

The spelling of 11006427640 in words is "eleven billion, six million, four hundred twenty-seven thousand, six hundred forty".