11271219558 has 32 divisors (see below), whose sum is σ = 24014793600. Its totient is φ = 3516446016.

The previous prime is 11271219523. The next prime is 11271219559. The reversal of 11271219558 is 85591217211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11271219559) 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, 586143 + ... + 605066.

It is an arithmetic number, because the mean of its divisors is an integer number (750462300).

Almost surely, 2^11271219558 is an apocalyptic number.

11271219558 is an abundant number, since it is smaller than the sum of its proper divisors (12743574042).

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

11271219558 is a wasteful number, since it uses less digits than its factorization.

11271219558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191316.

The product of its digits is 50400, while the sum is 42.

The spelling of 11271219558 in words is "eleven billion, two hundred seventy-one million, two hundred nineteen thousand, five hundred fifty-eight".