11158347847920 has 640 divisors, whose sum is σ = 44939523686400. Its totient is φ = 2224136392704.

The previous prime is 11158347847877. The next prime is 11158347847921. The reversal of 11158347847920 is 2974874385111.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11158347847921) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 148933189 + ... + 149008091.

It is an arithmetic number, because the mean of its divisors is an integer number (70218005760).

Almost surely, 2^{11158347847920} is an apocalyptic number.

11158347847920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11158347847920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22469761843200).

11158347847920 is an abundant number, since it is smaller than the sum of its proper divisors (33781175838480).

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

11158347847920 is a wasteful number, since it uses less digits than its factorization.

11158347847920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75317 (or 75311 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 11158347847920 in words is "eleven trillion, one hundred fifty-eight billion, three hundred forty-seven million, eight hundred forty-seven thousand, nine hundred twenty".