11158537958538 has 32 divisors (see below), whose sum is σ = 23492623233600. Its totient is φ = 3523604173056.

The previous prime is 11158537958483. The next prime is 11158537958539. The reversal of 11158537958538 is 83585973585111.

It is a super-3 number, since 3×11158537958538³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11158537958539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797170 + ... + 4790882.

It is an arithmetic number, because the mean of its divisors is an integer number (734144476050).

Almost surely, 2^{11158537958538} is an apocalyptic number.

11158537958538 is an abundant number, since it is smaller than the sum of its proper divisors (12334085275062).

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

11158537958538 is a wasteful number, since it uses less digits than its factorization.

11158537958538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018246.

The product of its digits is 181440000, while the sum is 69.

The spelling of 11158537958538 in words is "eleven trillion, one hundred fifty-eight billion, five hundred thirty-seven million, nine hundred fifty-eight thousand, five hundred thirty-eight".