11540402052 has 24 divisors (see below), whose sum is σ = 26930857632. Its totient is φ = 3846336000.

The previous prime is 11540402051. The next prime is 11540402123. The reversal of 11540402052 is 25020404511.

It is not an unprimeable number, because it can be changed into a prime (11540402051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54052 + ... + 161252.

It is an arithmetic number, because the mean of its divisors is an integer number (1122119068).

Almost surely, 2^11540402052 is an apocalyptic number.

11540402052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11540402052 is an abundant number, since it is smaller than the sum of its proper divisors (15390455580).

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

11540402052 is a wasteful number, since it uses less digits than its factorization.

11540402052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116179 (or 116177 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 11540402052 its reverse (25020404511), we get a palindrome (36560806563).

The spelling of 11540402052 in words is "eleven billion, five hundred forty million, four hundred two thousand, fifty-two".