1122665544 has 384 divisors, whose sum is σ = 4202714880. Its totient is φ = 261273600.

The previous prime is 1122665519. The next prime is 1122665563. The reversal of 1122665544 is 4455662211.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1122665499 and 1122665508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2666454 + ... + 2666874.

It is an arithmetic number, because the mean of its divisors is an integer number (10944570).

Almost surely, 2^1122665544 is an apocalyptic number.

1122665544 is a gapful number since it is divisible by the number (14) 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 1122665544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2101357440).

1122665544 is an abundant number, since it is smaller than the sum of its proper divisors (3080049336).

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

1122665544 is a wasteful number, since it uses less digits than its factorization.

1122665544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 494 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 1122665544 is about 33506.2015752308. The cubic root of 1122665544 is about 1039.3220260749.

It can be divided in two parts, 112266 and 5544, that multiplied together give a square (622402704 = 24948²).

The spelling of 1122665544 in words is "one billion, one hundred twenty-two million, six hundred sixty-five thousand, five hundred forty-four".