11541125018591 has 4 divisors (see below), whose sum is σ = 13189857164112. Its totient is φ = 9892392873072.

The previous prime is 11541125018477. The next prime is 11541125018593. The reversal of 11541125018591 is 19581052114511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11541125018591 - 2²⁶ = 11541057909727 is a prime.

It is a super-2 number, since 2×11541125018591² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11541125018593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824366072750 + ... + 824366072763.

It is an arithmetic number, because the mean of its divisors is an integer number (3297464291028).

Almost surely, 2^{11541125018591} is an apocalyptic number.

11541125018591 is a deficient number, since it is larger than the sum of its proper divisors (1648732145521).

11541125018591 is an equidigital number, since it uses as much as digits as its factorization.

11541125018591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648732145520.

The product of its (nonzero) digits is 72000, while the sum is 44.

The spelling of 11541125018591 in words is "eleven trillion, five hundred forty-one billion, one hundred twenty-five million, eighteen thousand, five hundred ninety-one".