11125562144 has 48 divisors (see below), whose sum is σ = 23250179736. Its totient is φ = 5222400000.

The previous prime is 11125562101. The next prime is 11125562159. The reversal of 11125562144 is 44126552111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10375459600 + 750102544 = 101860^2 + 27388^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 11125562144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192644 + ... + 243644.

Almost surely, 2^11125562144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11125562144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11625089868).

11125562144 is an abundant number, since it is smaller than the sum of its proper divisors (12124617592).

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

11125562144 is a wasteful number, since it uses less digits than its factorization.

11125562144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51429 (or 51421 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The spelling of 11125562144 in words is "eleven billion, one hundred twenty-five million, five hundred sixty-two thousand, one hundred forty-four".