11216020554 has 48 divisors (see below), whose sum is σ = 24551242560. Its totient is φ = 3700298880.

The previous prime is 11216020499. The next prime is 11216020579. The reversal of 11216020554 is 45502061211.

11216020554 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 602 + 0 + 5 + 54 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2865859 + ... + 2869769.

It is an arithmetic number, because the mean of its divisors is an integer number (511484220).

Almost surely, 2^11216020554 is an apocalyptic number.

11216020554 is an abundant number, since it is smaller than the sum of its proper divisors (13335222006).

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

11216020554 is a wasteful number, since it uses less digits than its factorization.

11216020554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515 (or 5512 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 11216020554 its reverse (45502061211), we get a palindrome (56718081765).

The spelling of 11216020554 in words is "eleven billion, two hundred sixteen million, twenty thousand, five hundred fifty-four".