11545125543 has 72 divisors (see below), whose sum is σ = 19865297088. Its totient is φ = 6439402368.

The previous prime is 11545125541. The next prime is 11545125593. The reversal of 11545125543 is 34552154511.

11545125543 is a `hidden beast` number, since 1 + 1 + 54 + 51 + 2 + 554 + 3 = 666.

It is not a de Polignac number, because 11545125543 - 2¹ = 11545125541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11545125498 and 11545125507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545125541) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13534305 + ... + 13535157.

It is an arithmetic number, because the mean of its divisors is an integer number (275906904).

Almost surely, 2^11545125543 is an apocalyptic number.

11545125543 is a deficient number, since it is larger than the sum of its proper divisors (8320171545).

11545125543 is a wasteful number, since it uses less digits than its factorization.

11545125543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1563 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 11545125543 in words is "eleven billion, five hundred forty-five million, one hundred twenty-five thousand, five hundred forty-three".