11540204340 has 96 divisors (see below), whose sum is σ = 37150009344. Its totient is φ = 2621950080.

The previous prime is 11540204329. The next prime is 11540204387. The reversal of 11540204340 is 4340204511.

It is a self number, because there is not a number n which added to its sum of digits gives 11540204340.

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, 12126 + ... + 152405.

It is an arithmetic number, because the mean of its divisors is an integer number (386979264).

Almost surely, 2^11540204340 is an apocalyptic number.

11540204340 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 11540204340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18575004672).

11540204340 is an abundant number, since it is smaller than the sum of its proper divisors (25609805004).

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

11540204340 is a wasteful number, since it uses less digits than its factorization.

11540204340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164717 (or 164715 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 11540204340 its reverse (4340204511), we get a palindrome (15880408851).

The spelling of 11540204340 in words is "eleven billion, five hundred forty million, two hundred four thousand, three hundred forty".