11154011620 has 24 divisors (see below), whose sum is σ = 23572624824. Its totient is φ = 4433185536.

The previous prime is 11154011599. The next prime is 11154011647. The reversal of 11154011620 is 2611045111.

It is a happy number.

11154011620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 704265444 + 10449746176 = 26538^2 + 102224^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11154011591 and 11154011600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772977 + ... + 1779256.

It is an arithmetic number, because the mean of its divisors is an integer number (982192701).

Almost surely, 2^11154011620 is an apocalyptic number.

11154011620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11154011620 is an abundant number, since it is smaller than the sum of its proper divisors (12418613204).

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

11154011620 is a wasteful number, since it uses less digits than its factorization.

11154011620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552399 (or 3552397 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 11154011620 its reverse (2611045111), we get a palindrome (13765056731).

The spelling of 11154011620 in words is "eleven billion, one hundred fifty-four million, eleven thousand, six hundred twenty".