5511012320 has 192 divisors, whose sum is σ = 15113952000. Its totient is φ = 1877852160.

The previous prime is 5511012319. The next prime is 5511012329. The reversal of 5511012320 is 232101155.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5511012292 and 5511012301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511012329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3242831 + ... + 3244529.

It is an arithmetic number, because the mean of its divisors is an integer number (78718500).

Almost surely, 2^5511012320 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 5511012320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7556976000).

5511012320 is an abundant number, since it is smaller than the sum of its proper divisors (9602939680).

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

5511012320 is a wasteful number, since it uses less digits than its factorization.

5511012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 5511012320 is about 74236.1927903095. The cubic root of 5511012320 is about 1766.3514830315.

Adding to 5511012320 its reverse (232101155), we get a palindrome (5743113475).

The spelling of 5511012320 in words is "five billion, five hundred eleven million, twelve thousand, three hundred twenty".