11540134551525 has 24 divisors (see below), whose sum is σ = 19080869400960. Its totient is φ = 6154357693440.

The previous prime is 11540134551499. The next prime is 11540134551527. The reversal of 11540134551525 is 52515543104511.

It is not a de Polignac number, because 11540134551525 - 2¹⁴ = 11540134535141 is a prime.

It is a super-2 number, since 2×11540134551525² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11540134551527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3536605 + ... + 5965554.

It is an arithmetic number, because the mean of its divisors is an integer number (795036225040).

Almost surely, 2^{11540134551525} is an apocalyptic number.

11540134551525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11540134551525 is a deficient number, since it is larger than the sum of its proper divisors (7540734849435).

11540134551525 is a wasteful number, since it uses less digits than its factorization.

11540134551525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518365 (or 9518360 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 11540134551525 in words is "eleven trillion, five hundred forty billion, one hundred thirty-four million, five hundred fifty-one thousand, five hundred twenty-five".